Stars of the Harry Potter films (L-R) Daniel Radcliffe who plays Harry, Gary Oldman who plays Sirius Black, Emma Watson who plays Hermione Granger, Michael Gambon who plays Albus Dumbledore and Rupert Grint who plays Ron Weasley, pose for photographers in London, May 27, 2004. The latest film adaptation of the Harry Potter books by Britain's J K Rowling, Harry Potter and The Prisoner Of Azkaban, is due to premiere in the UK on May 30. REUTERS/Peter Macdiarmid PKM/ASA/CRB