LA Times 'Breaking Dawn': Kristen Stewart's extreme 'Twilight' transformation
To depict the great physical toll the pregnancy takes on Bella's body — she's unable to eat and essentially is withering away as her stomach swells — the "Breaking Dawn" filmmakers looked to Lola Visual Effects, the company responsible for downsizing muscular Chris Evans to a pre-transformation weakling in this summer's comic book superhero film "Captain America." The results are certainly eyebrow-raising, with Bella becoming increasingly pale and extremely gaunt.
"The idea was to leave you with a question mark about how they did it," said the film's director, Bill Condon. "We wanted you to think it was possible that Kristen actually lost a lot of weight for it."
The visual-effects team added prosthetics to Stewart's face (a process that took three hours of application) to make her eyes look more sunken and her ears larger. Stewart likened wearing the prosthetics to having a "big, skinny head" for the scenes. Still, the 21-year old actress was game for the transformation.
"I'm so happy that they were not afraid of it — to have your main character look so awful for half of the movie is a bold choice for a huge film," Stewart said. "It was the one thing I wasn't fully responsible for concerning Bella and it made me really nervous. I didn't know what it would look like until I saw the movie."