Eddie Redmayne plays the role of famous scientist Stephen Hawking in the “Theory of Everything.” The film is based on Jane Hawking’s book about her marriage to Stephen Hawking. The Hawkings eventually divorced. Hawking was a young graduate student, when he suddenly developed symptoms for amyotrophic lateral sclerosis (ALS). He earned his PhD and eventually went on to teach. He and Jane started a family and stayed together for many years before calling it quits.

Redmayne is so convincing in “The Theory of Everything,” that it hard to believe that that is not the real Hawking on the silver screen.

Redmayne was in San Francisco, where we got to interview him and ask him questions about how he prepared for his role in the film. Here is a snippet from that interview.