Hilary Duff is starring in a new movie about the war in Iraq called 'War, Inc.,' which is quite a change for the pop star who's known for her super sweet 'Lizzie McGuire' series and teen-friendly music. But just as she's grown with her recording career, Hilary is going for more grown-up roles when it comes to film.

"[I was] a little like, 'Oh my god what are the kids going to think?'" she tells Moviefone. But the singer/actress feels that her new movie will "raise awareness for a lot of people about what is going on in the world." Find out what else Hilary had to say about her new flick and red-hot career in the full interview below.