Kristin Cavallari is busy promoting her new movie, "Van Wilder: Freshman Year," but before she knows it she'll find herself back in the MTV reality-TV world, making her big debut on "The Hills."

Despite rumors that she doesn't get along with Audrina Patridge, Cavallari told MTV News that she supports her "Hills" co-star's movie career too. "I think it's great. I mean, I think if we have this opportunity, why not try to run with it?" said the budding actress, who plays the campus hottie in the direct-to-DVD "Van Wilder" sequel. "I think it's great."

Although you may see many of the girls from the "Hills" trying their hand at scripted drama, Cavallari insisted that the drama on the "Hills" is nothing but real. And if you think that Cavallari was acting all those years on "Laguna Beach," think again. "Everyone's going to have an opinion," she said. "And everyone's going to think what they want. You can't really change that, so ..."

She also pointed out that her experiences on the big and small screens are very different from each other. "It's definitely different," she said. "I love being on set and being in a movie. I think it's so much fun. I really, really love it. And the 'Hills' or 'Laguna Beach' is more like hanging out with people you know, rather than acting and memorizing lines and stuff."