Hayden Panettiere left her innocent image in her trailer when she filmed new movie I Love You Beth Cooper.
The actress - best known for her role as cheerleader Claire Bennett in Heroes - gives a geeky boy an eyeful as she opens up her towel in the girls' changing rooms in the upcoming flick.

In another scene, the teen star shows off her cleavage as she takes off her graduation gown only to discover her top has slid down to reveal her bright orange bra.
The new movie tells the story of a nerdy boy who proclaims his love for the hottest and most popular girl in school - Beth Cooper (Hayden) - during his graduation speech.

Much to his surprise, Beth shows up at his door that very night and decides to show him the best night of his life.
See more of Hayden in I Love You Beth Cooper below


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