HELLO! have an exclusive featurette, with Professor Hawking speaking about Felicity Jones' portrayal of first wife Jane.
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"Felicity made a very charming Jane," said Professor Hawking, before adding: "The film was surprisingly honest about our marriage, it reflects our struggle to bring up three children, despite my disability."
Based on Jane's memoir, the film is expected to garner a number of BAFTA and Oscar nominations, and has already scooped nominations for the SAG awards and the Golden Globes.
Felicity said of meeting Jane for the first time: "When she opened the door she was like a ray of sunshine, very open, very warm, you can't imagine what she went through."
"I was very impressed with Felicity," added Jane Hawking, before continuing: "and when I saw Felicity on the screen, I thought, 'oh my goodness, that's me', because she had captured my mannerisms."