Alan Rickman was "uncanny" as Eamon de Valera - Neil Jordan
Director Neil Jordan has said Alan Rickman's performance as Eamon de Valera in his 1996 film 'Michael Collins' was "uncanny".
Jordan said Rickman pored over video footage of the politician to prepare for the role.
"He was one of those wonderful actors, one of those treasures. He accepted the role without question because he thought the film was important," he said.
"His recreation of the picture of De Valera, his voice and his stance, everything like that was uncanny and quite immaculate."
Actress Cathy Belton fondly remembered Rickman's "generosity of spirit" and said it was a privilege to call him a "dear friend".
Rickman directed Belton in period drama A Little Chaos, and they starred in Ibsen's play John Gabriel Borkman at the Abbey and in New York.
"His dry Celtic wit was a joy to be around, always challenging, charming, questioning and listening. It was no wonder he felt so at home in Ireland during his many times working and visiting here," said Belton.
Dubliner Michael Gambon, who appeared with Rickman in Harry Potter, said he was "a great friend".