Meryl Streep is "perfect" for playing Margaret Thatcher, Jim Broadbent has said.
The American actress is portraying the former British prime minister in The Iron Lady, with Jim playing her on-screen husband Denis in the film being developed by Pathe and BBC Films.
"I think it's perceived that Thatcher needs a star, really, and she's perfect casting in many ways - she's got a good look, and she'll absolutely do it in a brilliant way," Jim told New York Magazine.
He added: "I think years ago a film about Thatcher was attempted, and they had a phone-in vote on a BBC morning news programme, 'Who do you think should play Margaret Thatcher?' And Meryl actually came out on top!"
Filming on the movie will kick off at the end of January.
"Meryl's also got an interesting eye on the script: she can bring an outsider's view on the story, so that it won't become a lazy, parochial piece that Brits understand but where nobody else really knows what's going on. She can ask the questions that foreign audiences will ask," Jim continued.
Set in the build-up to the Falklands conflict in 1982, the film will be directed by Phyllida Lloyd, who also helmed Mamma Mia!.