Stewart: Smaller movies kept me sane in Twilight years

Kristen Stewart has said she would have "turned mad" if she hadn't been able to work on other projects while living in the 'Twlight' world for four years.

The 22-year-old actress admits portraying Bella Swan in the five 'Twilight Saga' movies has taken a lot of "patience" so she was glad to have been able to shoot smaller films in between working on the vampire blockbusters.