Matt Prokop and Sarah Hyland Matt Prokop and Sarah Hyland

Sarah Hyland's character Dylan in the upcoming Disney Channel original movie Geek Charming may seem a bratty rich girl, but the Modern Family star says it's just an act.

"I start out off very diva-esque, bratty, spoiled," Hyland says. "She puts on this persona she thinks people will like, but the real Dylan is actually a lot like me, really goofy and straight-A student."

See photos from Geek Charming

In the film (Friday, 8/7c), Hyland stars opposite real-life boyfriend Matt Prokop, who plays film geek Josh. Dylan agrees to become the subject of his documentary about her quest to be crowned Blossom Queen — and although the two seem like polar opposites, they eventually come to realize that they have much more in common than they thought.

Watch clips of Sarah Hyland in our Online Video Guide

Hyland says that what sets Geek Charming apart from the "rich girl and geeky guy fall in love" mold is that the two main characters are faced with real issues: Dylan struggles with her mom's death and Josh has an absentee father. "It's not very 'everything is perfect in this world,'" she says. "Bad things happen to good people — it's just what you make of it that really counts and I think that's why this is so different."

Watch our interview with the Geek Charming couple:

Geek Charming premieres Friday at 8/7c on Disney Channel.