Kristen Stewart was branded a "b***h" at school.

The 'Runaways' star - who landed her first acting role in TV movie 'The Thirteenth Year' when she was nine years old - hated the way she was teased by her peers over her early roles, in particular when she played a tomboy in 'The Safety of Objects'.

She said: "I didn't walk around talking about doing movies but then someone saw an old movie I was in, 'The Safety of Objects', and realised that the little boy in it had grown up into this girl - me. And then I got a lot of, 'She's such a b***h!'

"And yet most of these kids had never even spoken to me."

The 20-year-old actress quit school when she was 13 and admits she was happy to leave the education system behind because she didn't relate to her classmates.

She added in an interview with the Daily Telegraph website: "I was glad to leave school. I was missing a lot of classes and they were failing me.

"I couldn't relate to kids my own age. They are mean and don't give you any chance. Once you have done with school, you realise that it is just a smaller version of life, and really I have felt that I should have been an adult since I was aged about five.

"I remember when I turned 18 everyone asked me if I felt more mature, but I felt the same as I always did. Juggling work and school, and helping my mother; I've always had a lot of responsibility.' "