A vegetarian her whole life, Aimee Teegarden has taken her meat-free diet even further. "I've gotten rid of all dairy," says Teegarden, a vegan "99 percent of the time. I feel a lot better, I feel cleaner, and ethically it makes me feel a lot happier going to sleep at night."

Now, as she plays college freshman Julie Taylor in the final season of "Friday Night Lights" on NBC, Teegarden hits the big screen in the Disney comedy "Prom," playing Nova, a preppy, type-A, overachieving perfectionist — the class president who heads the prom committee. Unlike Julie, who is "more of an introvert, very set in her ways, Nova is a lot more outspoken, definitely an outgoing go-getter." Playing one of the lead roles "is definitely a lot more work," she concedes, "but I think it'll be a bigger payoff in the end."

Teegarden, who did go to her prom, believes that audiences will relate to the movie whether they did or not. "Everybody has this idea of their perfect senior year of high school and how great things are going to be, and in reality high school's not perfect. It's life. I think that no matter where you go to school or what type of school you go to there's all those teenage problems you go through, whether it's breaking up with a boyfriend, or having girl drama, or not getting asked to prom. I think a lot of people are going to be able to relate and just enjoy it."

As for "Friday Night Lights" coming to an end, "It was a little bittersweet. I kind of grew up on the show. It's like a second family," Teegarden notes. "But at the same time you've gotta move on."

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Aimee Teegarden: Vegan actress stars in 'Friday Night Lights' and 'Prom'
Young vegan star Aimee Teegarden talks diet, lead roles and moving on from 'Friday Night Lights.' Catch the eco-conscious actress in 'Prom.'