Screen stars on both sides of the Atlantic have paid tribute to Philip Seymour Hoffman following the actor's death.
Steve Coogan was among the celebrities left shocked by the news on the red carpet at the London Critics' Circle Film Awards in central London.
"He did some tremendous work. Everything he was in he raised the quality of his film just by his presence," he said.
"People have different opinions about actors but you wouldn't find anybody who would have a bad word to say about any of his performances, they were all incredibly nuanced."
He added: "There are actors and there are movie stars and sometimes they're both but he was an actor first and a movie star second."
Skyfall actress Naomie Harris said: "That's a huge loss for everyone. He was an extraordinary and intelligent man, so it's incredibly sad, and it makes the evening all a bit more sombre now, having heard."
Actress Mia Farrow tweeted: "OH NO!!!!! Philip Seymour Hoffman has died. A truly kind, wonderful man and one of our greatest actors - ever."
She added: "Rest in peace Philip Seymour Hoffman. We who marvelled at each of your performances are grateful and very very sad."
Jennifer Lawrence, who worked with the actor on the Hunger Games films, where he played Plutarch Heavensbee, said the star was "an incredible actor". "You played an excellent Plutarch. So sad," she said.
Ricky Gervais posted: "Such shocking & sad news. RIP Philip Seymour Hoffman. One of the greatest actors of a generation and a sweet, funny & humble man."
Whoopi Goldberg wrote: "A truly great actor... Gone.. I hope someone says hey whoop it's a hoax.. R.I.P."
A spokesman for the British Academy of Film and Television Arts said: "We're shocked and deeply saddened to learn that Philip Seymour Hoffman has died."
Comedian and actor Steve Martin paid tribute by praising Seymour Hoffman's 2012 Broadway performance in Arthur Miller's Death Of A Salesman.
He said: "Shocked to hear of Phillip Seymour Hoffman's death. If you missed him as Willy Loman, you missed a Willy Loman for all time."
Hollywood star Jim Carrey said: "Dear Philip, a beautiful beautiful soul. For the most sensitive among us the noise can be too much. Bless your heart."
John Hurt, who starred with Seymour Hoffman in 2003 film Owning Mahowny, said: "It's a devastating loss. His contribution was massive."
12 Years a Slave director Steve McQueen commented: "I'm a huge admirer. How sad and tragic. I feel for his family."
RnB star and actor Justin Timberlake said he was "devastated" by the news. "What an amazingly gifted actor. RIP," he tweeted.