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.

Last night, Hilary Duff hit hot New York City nightspot Tenjune after a screening of her new movie, 'War ,Inc.'. The singer-actress partied it up in the Cadillac Lounge with her co-stars and sister, Haylie, in celebration of her satirical flick's unveiling at the Tribeca Film Festival.

Check out more pictures of Hilary from the after party below.

Hilary Duff Pictures

All Hilary Duff Pictures

'Beverly Hills, 90210' was one of the biggest TV shows of the 90s, and now its back -- millennium style. The CW will be home to a new '90210' spin-off that's getting early buzz for its cast. Newcomer Dustin Milligan has already signed on and 'Nip/Tuck's' AnnaLynne McCord is part of the ensemble as well.

Who's else is being tapped for the show? People reports that pop star Hilary Duff may be the next person to move into the California zip code. A source says the former tween TV actress has been given a script for the role of Annie, the principal's daughter at Beverly Hills High. Stay tuned to see if Hilary does indeed join in on all the SoCal drama.

This week, Hilary Duff and Jessica Simpson "openly" practiced PDA as they were both snapped smooching their pro athlete boyfriends. Across the pond, Amy Winehouse was photographed looking cracked out as ever, while Joel Madden and Nicole Richie took 3-month-old Harlow out in Los Angeles. Flip through more pics of your favorite stars in this week's PopScene.