Author J.K. Rowling (2nd R), producer David Heyman (L), actress Emma Watson (2nd L) and actor Rupert Grint pose after Rowling and Heyman received an award for outstanding contribution to British cinema at the British Academy of Film and Television Arts (BAFTA) award ceremony at the Royal Opera House in London February 13, 2011. REUTERS/Luke Macgregor (BRITAIN - Tags: ENTERTAINMENT) 

British actor Rupert Grint arrives to attend the British Academy of Film and Television Arts (BAFTA) award ceremony at the Royal Opera House in London February 13, 2011. REUTERS/Paul Hackett (BRITAIN - Tags: ENTERTAINMENT) 

British actor Rupert Grint arrives at the British Film and Television Arts (BAFTA) award ceremony at the Royal Opera House in London February 13, 2011. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT HEADSHOT) 

Photographers take pictures of cast members Evanna Lynch, Rupert Grint (C) and Bonnie Wright (R) as they attend a promotional event for "Harry Potter and the Deathly Hallows: Part 1" in Tokyo November 19, 2010. The woman on far left is a translator. REUTERS/Kim Kyung-Hoon (JAPAN - Tags: ENTERTAINMENT) 

Cast members Evanna Lynch (L) and Rupert Grint attend a promotional event for "Harry Potter and the Deathly Hallows: Part 1" in Tokyo November 19, 2010. REUTERS/Kim Kyung-Hoon (JAPAN - Tags: ENTERTAINMENT) 

Cast members Evanna Lynch (L) and Rupert Grint attend a promotional event for "Harry Potter and the Deathly Hallows: Part 1" in Tokyo November 19, 2010. REUTERS/Kim Kyung-Hoon (JAPAN - Tags: ENTERTAINMENT) 

Cast members Evanna Lynch (L), Rupert Grint (C) and Bonnie Wright pose at a promotional event for "Harry Potter and the Deathly Hallows: Part 1" in Tokyo November 19, 2010. The banner reads, "Harry Potter and the Deathly Hallows: Part 1". REUTERS/Kim Kyung-Hoon (JAPAN - Tags: ENTERTAINMENT) 

Cast members Evanna Lynch (L), Rupert Grint (C) and Bonnie Wright pose at a promotional event for "Harry Potter and the Deathly Hallows: Part 1" in Tokyo November 19, 2010. The banner reads, "Harry Potter and the Deathly Hallows: Part 1". REUTERS/Kim Kyung-Hoon (JAPAN - Tags: ENTERTAINMENT) 

Cast members (L-R) Evanna Lynch, Rupert Grint and Bonnie Wright pose at a news conference for "Harry Potter and the Deathly Hallows: Part 1" in Japan November 18, 2010. REUTERS/Kim Kyung-Hoon (JAPAN - Tags: ENTERTAINMENT) 

Cast members Rupert Grint (L) and Bonnie Wright pose at a news conference for "Harry Potter and the Deathly Hallows: Part 1" in Japan November 18, 2010. REUTERS/Kim Kyung-Hoon (JAPAN - Tags: ENTERTAINMENT) 

Cast member Rupert Grint poses at a news conference for "Harry Potter and the Deathly Hallows: Part 1" in Japan November 18, 2010. REUTERS/Kim Kyung-Hoon (JAPAN - Tags: ENTERTAINMENT) 

Cast members (L-R) Evanna Lynch, Rupert Grint and Bonnie Wright pose at a news conference for "Harry Potter and the Deathly Hallows: Part 1" in Japan November 18, 2010. REUTERS/Kim Kyung-Hoon (JAPAN - Tags: ENTERTAINMENT) 

Cast members (L-R) Evanna Lynch, Rupert Grint and Bonnie Wright pose at a news conference for "Harry Potter and the Deathly Hallows: Part 1" in Japan November 18, 2010. REUTERS/Kim Kyung-Hoon (JAPAN - Tags: ENTERTAINMENT) 

Cast members (L-R) Evanna Lynch, Rupert Grint and Bonnie Wright pose at a news conference for "Harry Potter and the Deathly Hallows: Part 1" in Japan November 18, 2010. REUTERS/Kim Kyung-Hoon (JAPAN - Tags: ENTERTAINMENT) 

Actors (L-R) Daniel Radcliffe, Emma Watson, Rupert Grint and Tom Felton pose at the premiere of "Harry Potter and the Deathly Hallows: Part 1" in New York November 15, 2010. REUTERS/Shannon Stapleton (UNITED STATES - Tags: ENTERTAINMENT) 

Actors (L-R) Daniel Radcliffe, Emma Watson, Rupert Grint and Tom Felton pose at the premiere of "Harry Potter and the Deathly Hallows: Part 1" in New York November 15, 2010. REUTERS/Shannon Stapleton (UNITED STATES - Tags: ENTERTAINMENT) 

Actor Rupert Grint poses at the premiere of "Harry Potter and the Deathly Hallows: Part 1" in New York November 15, 2010. REUTERS/Shannon Stapleton (UNITED STATES - Tags: ENTERTAINMENT) 

Cast member Rupert Grint poses at the premiere of "Harry Potter and the Deathly Hallows: Part 1" in New York November 15, 2010. REUTERS/Shannon Stapleton (UNITED STATES - Tags: ENTERTAINMENT) 

Cast members (L to R) Ralph Fiennes, Daniel Radcliffe, Emma Watson, Rupert Grint and Tom Felton pose at the premiere of "Harry Potter and the Deathly Hallows: Part 1" in New York November 15, 2010. REUTERS/Shannon Stapleton (UNITED STATES - Tags: ENTERTAINMENT) 

Cast members Daniel Radcliffe (L), Emma Watson and Rupert Grint (R) pose at the premiere of "Harry Potter and the Deathly Hallows: Part 1" in New York November15, 2010. REUTERS/Shannon Stapleton (UNITED STATES - Tags: ENTERTAINMENT) 

Britain's Rupert Grint poses as he arrives for the world premiere of "Harry Potter and the Deathly Hallows: Part 1" at Leicester Square in London November 11, 2010. REUTERS/Dylan Martinez (BRITAIN - Tags: ENTERTAINMENT) 

Britain's Rupert Grint poses as he arrives for the world premiere of "Harry Potter and the Deathly Hallows: Part 1" at Leicester Square in London November 11, 2010. REUTERS/Dylan Martinez (BRITAIN - Tags: ENTERTAINMENT) 

Britain's Emma Watson poses with Daniel Radcliffe (L) and Rupert Grint as they arrive for the world premiere of "Harry Potter and the Deathly Hallows: Part 1" at Leicester Square in London November 11, 2010. REUTERS/Stefan Wermuth (BRITAIN - Tags: ENTERTAINMENT) 

Britain's Emma Watson poses with Daniel Radcliffe (L) and Rupert Grint as they arrive for the world premiere of "Harry Potter and the Deathly Hallows: Part 1" at Leicester Square in London November 11, 2010. REUTERS/Dylan Martinez (BRITAIN - Tags: ENTERTAINMENT) 

Britain's Emma Watson poses with Daniel Radcliffe (L) and Rupert Grint as they arrive for the world premiere of "Harry Potter and the Deathly Hallows: Part 1" at Leicester Square in London November 11, 2010. REUTERS/Stefan Wermuth (BRITAIN - Tags: ENTERTAINMENT) 

Britain's Emma Watson poses with Daniel Radcliffe (L) and Rupert Grint as they arrive for the world premiere of "Harry Potter and the Deathly Hallows: Part 1" at Leicester Square in London November 11, 2010. REUTERS/Stefan Wermuth (BRITAIN - Tags: ENTERTAINMENT) 

Britain's Emma Watson poses with Daniel Radcliffe (L) and Rupert Grint as they arrive for the world premiere of "Harry Potter and the Deathly Hallows: Part 1" at Leicester Square in London November 11, 2010. REUTERS/Stefan Wermuth (BRITAIN - Tags: ENTERTAINMENT) 

Britain's Rupert Grint poses as he arrives for the world premiere of "Harry Potter and the Deathly Hallows: Part 1" at Leicester Square in London November 11, 2010. REUTERS/Dylan Martinez (BRITAIN - Tags: ENTERTAINMENT) 

Britain's Rupert Grint poses as he arrives for the world premiere of "Harry Potter and the Deathly Hallows: Part 1" at Leicester Square in London November 11, 2010. REUTERS/Dylan Martinez (BRITAIN - Tags: ENTERTAINMENT) 

Britain's Emma Watson poses with Daniel Radcliffe (L) and Rupert Grint as they arrive for the world premiere of "Harry Potter and the Deathly Hallows: Part 1" at Leicester Square in London November 11, 2010. REUTERS/Stefan Wermuth (BRITAIN - Tags: ENTERTAINMENT) 

Britain's Emma Watson poses with Daniel Radcliffe (L) and Rupert Grint as they arrive for the world premiere of "Harry Potter and the Deathly Hallows: Part 1" at Leicester Square in London November 11, 2010. REUTERS/Stefan Wermuth (BRITAIN - Tags: ENTERTAINMENT) 

Britain's Emma Watson poses with Daniel Radcliffe (L) and Rupert Grint pose as they arrive for the world premiere of "Harry Potter and the Deathly Hallows: Part 1" at Leicester Square in London November 11, 2010. REUTERS/Dylan Martinez (BRITAIN - Tags: ENTERTAINMENT IMAGES OF THE DAY) 

Britain's Emma Watson poses with Daniel Radcliffe (L) and Rupert Grint as they arrive for the world premiere of "Harry Potter and the Deathly Hallows: Part 1" at Leicester Square in London November 11, 2010. REUTERS/Dylan Martinez (BRITAIN - Tags: ENTERTAINMENT) 

Britain's Emma Watson poses with Daniel Radcliffe (L) and Rupert Grint as they arrive for the world premiere of "Harry Potter and the Deathly Hallows: Part 1" at Leicester Square in London November 11, 2010. REUTERS/Dylan Martinez (BRITAIN - Tags: ENTERTAINMENT) 

Daniel Radcliffe (R) and Rupert Grint from the "Harry Potter" movies wave at fans gathered for the grand opening of The Wizarding World of Harry Potter theme park at the Universal Studio Resort in Orlando, Florida June 18, 2010. REUTERS/Scott Audette (UNITED STATES - Tags: ENTERTAINMENT) 

Daniel Radcliffe (R) and Rupert Grint from the "Harry Potter" movies cheer with the fans gathered for the grand opening for The Wizarding World of Harry Potter at the Universal Studio Resort in Orlando, Florida June 18, 2010. REUTERS/Scott Audette (UNITED STATES - Tags: ENTERTAINMENT) 

Harry Potter's Rupert Grint (C) walks the red carpet during the grand opening celebration for The Wizarding World of Harry Potter at the Universal Studio Resort in Orlando, Florida June 16, 2010. REUTERS/Scott Audette (UNITED STATES - Tags: ENTERTAINMENT HEADSHOT) 

Harry Potter's Rupert Grint walks the red carpet during the grand opening celebration for The Wizarding World of Harry Potter at the Universal Studio Resort in Orlando, Florida June 16, 2010. REUTERS/Scott Audette (UNITED STATES - Tags: ENTERTAINMENT) 

Harry Potter's Rupert Grint (C) walks the red carpet during the grand opening celebration for The Wizarding World of Harry Potter at the Universal Studio Resort in Orlando, Florida June 16, 2010. REUTERS/Scott Audette (UNITED STATES - Tags: ENTERTAINMENT) 

Actor Rupert Grint (L) arrives for the premiere of the film "Harry Potter and the Half-Blood Prince" in New York July 9, 2009. REUTERS/Lucas Jackson (UNITED STATES ENTERTAINMENT) 

Actor Rupert Grint arrives for the premiere of the film "Harry Potter and the Half-Blood Prince" in New York July 9, 2009. REUTERS/Lucas Jackson (UNITED STATES ENTERTAINMENT) 

Actor Rupert Grint arrives for the premiere of the film "Harry Potter and the Half-Blood Prince" in New York July 9, 2009. REUTERS/Lucas Jackson (UNITED STATES ENTERTAINMENT) 

Actors (L-R) Daniel Radcliffe, Emma Watson, and Rupert Grint arrive for the premiere of "Harry Potter and the Half-Blood Prince" in New York July 9, 2009. REUTERS/Jamie Fine (UNITED STATES ENTERTAINMENT IMAGES OF THE DAY) 

Actors (L-R) Michael Gambon, Bonnie Wright, Daniel Radcliffe, Emma Watson, Rupert Grint, Tom Felton and Warwick Davies (bottom) arrive for the premiere of "Harry Potter and the Half-Blood Prince" in New York July 9, 2009. REUTERS/Jamie Fine (UNITED STATES ENTERTAINMENT) 

Actor Rupert Grint arrives for the premiere of "Harry Potter and the Half-Blood Prince" in New York July 9, 2009. REUTERS/Jamie Fine (UNITED STATES ENTERTAINMENT) 

British actor Rupert Grint arrives for the world premiere of "Harry Potter and the Half Blood Prince" at Leicester Square in London July 7, 2009. REUTERS/Luke MacGregor (BRITAIN ENTERTAINMENT) 

Actors Maggie Smith and Rupert Grint share a light moment on the red carpet as they arrive for the world premiere of "Harry Potter and the Half Blood Prince" at Leicester Square in London July 7, 2009. REUTERS/Luke MacGregor (BRITAIN ENTERTAINMENT) 

British actors Rupert Grint (L-R), Emma Watson and Daniel Radcliffe arrive for the world premiere of "Harry Potter and the Half Blood Prince" at Leicester Square in London July 7, 2009. REUTERS/Luke MacGregor (BRITAIN ENTERTAINMENT) 

British actors Rupert Grint (L-R), Emma Watson and Daniel Radcliffe arrive for the world premiere of "Harry Potter and the Half Blood Prince" at Leicester Square in London July 7, 2009. REUTERS/Luke MacGregor (BRITAIN ENTERTAINMENT IMAGES OF THE DAY) 

RNPS IMAGES OF THE YEAR 2007 - ENTERTAINMENT - Cast members Daniel Radcliffe (C), Rupert Grint (L) and Emma Watson from the movie "Harry Potter and the Order of the Phoenix" leave their hand prints in cement at the Chinese theatre in Hollywood, California, July 9, 2007. REUTERS/Mario Anzuoni (UNITED STATES) 

Cast of Harry Potter and the Order of the Phoenix (L-R) Evanna Lynch, Bonnie Wright, Matthew Lewis, Rupert Grint, Emma Watson and Daniel Radcliffe pose after winning the Family film award at the first ever National Movie Awards at the Royal Festival Hall in London September 28, 2007. REUTERS/Luke MacGregor (BRITAIN) 

Actor Rupert Grint arrives for the first ever National Movie Awards at the Royal Festival Hall in London September 28, 2007. REUTERS/Luke MacGregor (BRITAIN) 

Star of the "Harry Potter" films Rupert Grint smiles as he arrives to open a new Harry Potter themed section of the toy store FAO Schwarz in New York July 13, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

Star of the "Harry Potter" films Rupert Grint smiles as he arrives to open a new Harry Potter themed section of the toy store FAO Schwarz in New York July 13, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

Star of the "Harry Potter" films Rupert Grint smiles as he arrives to open a new Harry Potter themed section of the toy store FAO Schwarz in New York July 13, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

Star of the "Harry Potter" films Rupert Grint (R) smiles as he and Ed Schmults, CEO of FAO Schwarz, open a new Harry Potter themed section of the store in New York July 13, 2007. REUTERS/Lucas Jackson (UNITED STATES) 

Star of the "Harry Potter" films Rupert Grint (R) smiles as he and Ed Schmults, CEO of FAO Schwarz, open a new Harry Potter themed section of the store in New York July 13, 2007. REUTERS/Lucas Jackson (UNITED STATES)