British actor John Cleese arrives to receive the Heart of Sarajevo honorary award during the 23rd Sarajevo Film Festival in Sarajevo, Bosnia and Herzegovina, August 16, 2017. REUTERS/Dado Ruvic 

British actor John Cleese is pictured on the red carpet during the 23rd Sarajevo Film Festival in Sarajevo, Bosnia and Herzegovina, August 16, 2017. REUTERS/Dado Ruvic 

British actor John Cleese arrives to receive the Heart of Sarajevo honorary award during the 23rd Sarajevo Film Festival in Sarajevo, Bosnia and Herzegovina, August 16, 2017. REUTERS/Dado Ruvic 

British actor John Cleese is pictured on the red carpet during the 23rd Sarajevo Film Festival in Sarajevo, Bosnia and Herzegovina, August 16, 2017. REUTERS/Dado Ruvic 

British actor John Cleese is pictured on the red carpet during the 23rd Sarajevo Film Festival in Sarajevo, Bosnia and Herzegovina, August 16, 2017. REUTERS/Dado Ruvic 

British actor John Cleese signs autographs on the red carpet during the 23rd Sarajevo Film Festival in Sarajevo, Bosnia and Herzegovina, August 16, 2017. REUTERS/Dado Ruvic 

British actor John Cleese walks on the red carpet during the 23rd Sarajevo Film Festival in Sarajevo, Bosnia and Herzegovina, August 16, 2017. REUTERS/Dado Ruvic 

British actor John Cleese walks on the red carpet during the 23rd Sarajevo Film Festival in Sarajevo, Bosnia and Herzegovina, August 16, 2017. REUTERS/Dado Ruvic 

British actor John Cleese stands on the red carpet during the 23rd Sarajevo Film Festival in Sarajevo, Bosnia and Herzegovina, August 16, 2017. REUTERS/Dado Ruvic 

British actor John Cleese reacts on the red carpet during the 23rd Sarajevo Film Festival in Sarajevo, Bosnia and Herzegovina, August 16, 2017. REUTERS/Dado Ruvic 

British actor John Cleese waves on the red carpet during the 23rd Sarajevo Film Festival in Sarajevo, Bosnia and Herzegovina, August 16, 2017. REUTERS/Dado Ruvic 

British actor John Cleese poses with the Heart of Sarajevo honorary award during the 23rd Sarajevo Film Festival in Sarajevo, Bosnia and Herzegovina, August 16, 2017. REUTERS/Dado Ruvic 

British actor John Cleese holds the Heart of Sarajevo honorary award during the 23rd Sarajevo Film Festival in Sarajevo, Bosnia and Herzegovina, August 16, 2017. REUTERS/Dado Ruvic 

British actor John Cleese poses with the Heart of Sarajevo honorary award during the 23rd Sarajevo Film Festival in Sarajevo, Bosnia and Herzegovina, August 16, 2017. REUTERS/Dado Ruvic 

British actor John Cleese stands on the red carpet during the 23rd Sarajevo Film Festival in Sarajevo, Bosnia and Herzegovina, August 16, 2017. REUTERS/Dado Ruvic 

Sweden's Mans Zelmerloew (L), winner of the Eurovision Song Contest 2015 takes a selfie with his mobile phone as British actor John Cleese poses with the Rose d'Or award for his lifetime achievement during a ceremony in Berlin, Germany, September 13, 2016. REUTERS/Fabrizio Bensch 

British actor John Cleese poses with the Rose d'Or award for his lifetime achievement during a ceremony in Berlin, Germany, September 13, 2016. REUTERS/Fabrizio Bensch 

British actor John Cleese poses in front of the Brandenburg Gate ahead of the Rose d'Or award ceremony where he will be awarded for his lifetime achievement in Berlin, Germany, September 13, 2016. REUTERS/Fabrizio Bensch 

British actor John Cleese poses in front of the Brandenburg Gate ahead of the Rose d'Or award ceremony where he will be awarded for his lifetime achievement in Berlin, Germany, September 13, 2016. REUTERS/Fabrizio Bensch 

British actor John Cleese arrives to the Rose d'Or award ceremony to be awarded for his lifetime achievement in Berlin, Germany, September 13, 2016. REUTERS/Fabrizio Bensch 

Members of British comedy troupe Monty Python (L-R) Eric Idle, John Cleese, Terry Gilliam, Michael Palin and Terry Jones pose for a photograph during a media event in central London, June 30, 2014. The surviving members of Monty Python will perform at London's O2 Arena from July 1. REUTERS/Paul Hackett (BRITAIN - Tags: ENTERTAINMENT) 

Members of British comedy troupe Monty Python (L-R) Eric Idle, John Cleese, Terry Gilliam, Michael Palin and Terry Jones pose for a photograph during a media event in central London, June 30, 2014. The surviving members of Monty Python will perform at London's O2 Arena from July 1. REUTERS/Paul Hackett (BRITAIN - Tags: ENTERTAINMENT) 

Members of British comedy troupe Monty Python (L-R) Eric Idle, John Cleese, Terry Gilliam, Michael Palin and Terry Jones pose for a photograph during a media event in central London, June 30, 2014. The surviving members of Monty Python will perform at London's O2 Arena from July 1. REUTERS/Paul Hackett (BRITAIN - Tags: ENTERTAINMENT) 

Members of British comedy troupe Monty Python (L-R) Eric Idle, John Cleese, Terry Gilliam, Michael Palin and Terry Jones pose for a photograph during a media event in central London, June 30, 2014. The surviving members of Monty Python will perform at London's O2 Arena from July 1. REUTERS/Paul Hackett (BRITAIN - Tags: ENTERTAINMENT) 

Members of British comedy troupe Monty Python (L-R) Eric Idle, John Cleese, Terry Gilliam, Michael Palin and Terry Jones pose for a photograph during a media event in central London, June 30, 2014. The surviving members of Monty Python will perform at London's O2 Arena from July 1. REUTERS/Paul Hackett (BRITAIN - Tags: ENTERTAINMENT) 

Members of British comedy troupe Monty Python (L-R) Eric Idle, John Cleese, Terry Gilliam, Michael Palin and Terry Jones pose for a photograph during a media event in central London, June 30, 2014. The surviving members of Monty Python will perform at London's O2 Arena from July 1. REUTERS/Paul Hackett (BRITAIN - Tags: ENTERTAINMENT) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones, Terry Gilliam and John Cleese, pose for photographers at a photocall in central London November 21, 2013. The group announced at a news conference that they will re-unite for a live, one-off show next July, in London. REUTERS/Andrew Winning (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones, Terry Gilliam and John Cleese, pose for photographers at a photocall in central London November 21, 2013. The group announced at a news conference that they will re-unite for a live, one-off show next July, in London. REUTERS/Andrew Winning (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones, Terry Gilliam and John Cleese, pose for photographers at a photocall in central London November 21, 2013. The group announced at a news conference that they will re-unite for a live, one-off show next July, in London. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones, Terry Gilliam and John Cleese, pose for photographers at a photocall in central London November 21, 2013. The group announced at a news conference that they will re-unite for a live, one-off show next July, in London. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones,Terry Gilliam and John Cleese, hold Carol Cleveland as they pose for photographers at a photocall in central London November 21, 2013. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones, Carol Cleveland, Terry Gilliam and John Cleese, pose for photographers at a photocall in central London November 21, 2013. The group announced at a news conference that they will re-unite for a live, one-off show next July, in London. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones,Terry Gilliam and John Cleese, hold Carol Cleveland as they pose for photographers at a photocall in central London November 21, 2013. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT SOCIETY TPX IMAGES OF THE DAY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones, Terry Gilliam and John Cleese, pose for photographers at a photocall in central London November 21, 2013. The group announced at a news conference that they will re-unite for a live, one-off show next July, in London. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones, Terry Gilliam and John Cleese, pose for photographers at a photocall in central London November 21, 2013. The group announced at a news conference that they will re-unite for a live, one-off show next July, in London. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

Two of the surviving members of the original cast of the Monty Python comedy team Terry Gilliam (L) and John Cleese, pose for photographers at a photocall in central London November 21, 2013. The group announced at a news conference that they will re-unite for a live, one-off show next July, in London. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones, Terry Gilliam and John Cleese, pose for photographers at a photocall in central London November 21, 2013. The group announced at a news conference that they will re-unite for a live, one-off show next July, in London. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones,Terry Gilliam return Carol Cleveland to the ground after lifting her and John Cleese stands alone (R) as they pose for photographers at a photocall in central London November 21, 2013. The group announced at a news conference that they will re-unite for a live, one-off show next July, in London. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones,Terry Gilliam and John Cleese, hold Carol Cleveland as they pose for photographers at a photocall in central London November 21, 2013. The group announced at a news conference that they will re-unite for a live, one-off show next July, in London. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones,Carol Cleveland, Terry Gilliam and John Cleese, pose for photographers at a photocall in central London November 21, 2013. The group announced at a news conference that they will re-unite for a live, one-off show next July, in London. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones,Terry Gilliam and John Cleese, hold Carol Cleveland as they pose for photographers at a photocall in central London November 21, 2013. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT SOCIETY TPX IMAGES OF THE DAY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones,Terry Gilliam and John Cleese, hold Carol Cleveland as they pose for photographers at a photocall in central London November 21, 2013. REUTERS/Andrew Winning (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones, Carol Cleveland, Terry Gilliam and John Cleese, pose for photographers at a photocall in central London November 21, 2013. REUTERS/Andrew Winning (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones,Terry Gilliam and John Cleese, hold Carol Cleveland as they pose for photographers at a photocall in central London November 21, 2013. REUTERS/Andrew Winning (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones, Carol Cleveland, Terry Gilliam and John Cleese, pose for photographers at a photocall in central London November 21, 2013. REUTERS/Andrew Winning (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones, Terry Gilliam and John Cleese, pose for photographers at a photocall in central London November 21, 2013. REUTERS/Andrew Winning (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones, Terry Gilliam and John Cleese, pose for photographers at a photocall in central London November 21, 2013. REUTERS/Andrew Winning (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones, Terry Gilliam and John Cleese, pose for photographers at a photocall in central London November 21, 2013. REUTERS/Andrew Winning (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

The surviving members of the original cast of the Monty Python comedy team (L-R) Michael Palin, Eric Idle, Terry Jones, Terry Gilliam and John Cleese, pose for photographers at a photocall in central London November 21, 2013. REUTERS/Andrew Winning (BRITAIN - Tags: ENTERTAINMENT SOCIETY) 

(L-R) The original cast of the Monty Python troupe Michael Palin, John Cleese, Terry Jones, Terry Gilliam and Eric Idle smile as they arrive at the premiere of the documentary "Monty Python: Almost The Truth (Lawyer's Cut)," celebrating the troupe's 40th anniversary, in New York October 15, 2009. REUTERS/Lucas Jackson (UNITED STATES ENTERTAINMENT) 

(L-R) The original cast of the Monty Python troupe Michael Palin, John Cleese, Terry Jones, Terry Gilliam and Eric Idle smile as they arrive at the premiere of the documentary "Monty Python: Almost The Truth (Lawyer's Cut)," celebrating the troupe's 40th anniversary, in New York October 15, 2009. REUTERS/Lucas Jackson (UNITED STATES ENTERTAINMENT) 

The original Monty Python troupe cast members John Cleese (L) and Terry Jones joke around as they arrive at the premiere of the documentary "Monty Python: Almost The Truth (Lawyer's Cut)," celebrating the troupe's 40th anniversary, in New York October 15, 2009. REUTERS/Lucas Jackson (UNITED STATES ENTERTAINMENT IMAGES OF THE DAY) 

(L-R) The original cast of the Monty Python troupe Michael Palin, John Cleese, Terry Jones, Terry Gilliam, and Eric Idle smile as they arrive at the premiere of the documentary "Monty Python: Almost The Truth (Lawyer's Cut)" in New York October 15, 2009. REUTERS/Lucas Jackson (UNITED STATES ENTERTAINMENT) 

(L-R) The original cast of the Monty Python troupe, Michael Palin, John Cleese, Terry Jones, Terry Gilliam, and Eric Idle smile as they arrive at the premiere of the documentary "Monty Python: Almost The Truth (Lawyer's Cut)" in New York October 15, 2009. REUTERS/Lucas Jackson (UNITED STATES ENTERTAINMENT) 

Actor John Cleese and daughter Camilla Cleese pose at the 2009 Vanity Fair Oscar Party in West Hollywood, California February 22, 2009. REUTERS/Danny Moloshok (UNITED STATES) (OSCARS-PARTY) 

Britain's Prince Harry (L) meets British actor John Cleese backstage at the Wimbledon Theatre, in London November 12, 2008. A charity performance at the theatre was in aid of the Prince's Trust, and is one of a number of events celebrating the 60th birthday of Prince Charles, which is on November 14. REUTERS/Alastair Grant/Pool (BRITAIN) 

Britain's Prince Harry (L) talks to British actor John Cleese backstage at the Wimbledon Theatre, in London November 12, 2008. A charity performance at the theatre was in aid of the Prince's Trust, and is one of a number of events celebrating the 60th birthday of Prince Charles, which is on November 14. REUTERS/Alastair Grant/Pool (BRITAIN) 

A woman passes by a BZ WBK bank advertisement for quick cash credit featuring English actor John Cleese in Warsaw October 31, 2008. REUTERS/Peter Andrews (POLAND)