Bradley Cooper has revealed how happy he was to help out his childhood friends by starring in Words.
The Hangover star attended the premiere of the new movie in Los Angeles with old pals Brian Klugman and Lee Sternthal, who directed the drama about a successful author who is exposed as a plagiarist, co-starring Jeremy Irons and Bradley's ex Zoe Saldana.
Bradley said modestly: "I just feel happy to be a part of it. That they included me in it is the best part."
Juno star JK Simmons, who plays his father in the film, said how great it was that Bradley had been able to help his friends' dream of making a movie become a reality.
He said: "Bradley was awesome and I didn't even know, literally, until I showed up in Quebec that Bradley and Lee and Brian all grew up together in Philly, and they had written this script six or seven years prior and nobody would buy it because it was too clever and interesting.
"And then their old pal becomes a big fat movie star and now it gets made, which is a happy ending."
Zoe enthused that the film was a great change from the summer's action blockbusters.
She said: "It's a beautiful story, it was very compelling, the characters are very complex but they're real and it has a great cast. I think that coming off of a summer of tons of blockbuster crash boom bam, a little bit of levity that challenges, mentally emotionally and intellectually - I think it's necessary."
She said of working with Bradley: "He's an amazing actor, very professional too."