I think the role in
Panic Room(2002) made her more famous than the Bella in the
Twilight ,but twilight came after panic room that's why everybody remember Bella more than the Sarah Altman who has diabetes.
Gorgeous Kristen was born on 1990 April 09 Los Angelese U.S. Kristen's parents are working behind the camera, her father John Stewart is a stage manager and a Television Producer and her mother Jules Mann-Stewart is Script supervisor. Like most actresses Kristen also started her career as a actress from her school ages. Kristen became more famous after her role in the Panic Room 2002 her role was as a diabetic daughter of a divorced women which she performed well, after and before that , she appeared in many films including famous Twilight.
As always she is an beautiful and more talented actress.
hope you'll enjoy!