LONDON, ENGLAND – JANUARY 26: Michael Gambon attends the World Premiere of 'Dad's Army' at Odeon Leicester Square on January 26, 2016 in London, United Kingdom. (Photo by Karwai Tang/WireImage)
397151 19: Actor Daniel Radcliffe (R) and Actor Robbie Coltrane attend the premiere of "Harry Potter and the Sorcerer's Stone" November 11, 2001 at the Ziegfeld Theatre in New York City.
Actors Robbie Coltrane and (from left) Warwick Davis, Emma Watson and Rupert Grint, at King's Cross St Pancras, central London for the Harry Potter & The Philosopher's Stone – DVD & video launch party. (Photo by Andy Butterton – PA Images/PA Images via Getty Images)
397151 19: Actor Daniel Radcliffe (R) and Actor Robbie Coltrane attend the premiere of "Harry Potter and the Sorcerer's Stone" November 11, 2001 at the Ziegfeld Theatre in New York City.