Do your little bros constantly want into your room, interrupt your private phone calls and tell you the house has been launched into outer space? Uh..yes on everything but the last one you say? In the space adventure Zathura, 15-year-old actress Kristen Stewart has to deal with a galaxy full of trouble when her two little brothers play a forbidden magical game.

Pretty Kristen first caught our attention as Jodie Foster's daughter in the thriller Panic Room and you might have seen her touching performance in the really relevant TV movie "Speak" in which the teen played a young victim of date rape. Wanting to chill a bit and lighten up, Kristen was happy to accept the role of a big sister since, in real life, she's the little sister in her family getting bossed around by older brothers.

Cold Creek Manor Credit: Buena Vista Pictures

Kristen explained that dealing with lots of on set monsters, a bit of effects and harness work in which she got to "fly" and having to have a weird full cast made of her whole body was unique for the young actress. Kristen came to our interview with her older brother who sat quietly in the corner, letting his little sis shine as she told us about making Zathura and her upcoming projects. Picture a normal teen on a casual day in gray sweat tank, jacket and jeans.

TeenHollywood: So is there a perfect cast model of Kristen Stewart somewhere in existence?