Madden, the film with Nicolas Cage as NFL coach John Madden, opens in select cinemas on 11 November.
Cage, 62, gained 25 pounds and wore prosthetics to become Madden, according to ABC Audio.
David O. Russell directs. Good Morning America co-anchor Michael Strahan is an executive producer.
Madden led the Oakland Raiders to a Super Bowl XI win in 1977. He later became an Emmy-winning NFL broadcaster.
He was also the face of the Madden NFL video game series. He died in 2021 at the age of 85.
Cage told ABC News he connected with Madden through his late father, August Coppola, a professor of comparative literature.
"What I really appreciated about John Madden is that he's a teacher," Cage said. "I really cherish teachers."
Christian Bale plays Raiders owner Al Davis. Cage said the two actors prepared for their scenes in very different ways.
Asked about his personal life, Cage said: "I'm fine. I'm very happy. I'm not complaining."
After the cinema run, Madden starts streaming on Prime Video from 18 November.
Read the full story on Nicolas Cage as John Madden on Trends News Stories.
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