Kristen Stewart out and about during the 2009 Sundance Film Festival, Day 5, Park City, Utah - 19.01.09

Actress Kristen Stewart has dismissed reports she's already tiring of playing Bella in the movie adaptation of Stephenie Meyer's hit book series - in fact she's in it for the long haul.

She tells Eonline.com, "We all really hope there is going to be a number four. I'm pretty confident that the fans aren't going to, all of a sudden, lose interest.

"The only case that a fourth one wouldn't be made is if all of a sudden people stopped caring, and I really don't think that's going to happen."

Stewart is currently preparing to start work on the Twilight sequel New Moon later this year (09).

Source: WENN