Avril once again showed us she can be a pretty, sophisticated lady. The punk pop star attended the premiere of Fast Food Nation at the Egyptian Theater in Hollywood this weekend. Fast Food Nation is Avril's big acting debut. We like when Avril dresses up and acts classy, rather than being trashy and spitting on the paparazzi. Let's hope that was just a one time thing, and that we get to see more and more of the grown up Avril looking chic and acting like a lady.

Fast Food Nation opens November 17th. Other stars of the film including Wilmer Valderrama, Patricia Arquette and Greg Kinnear were also at the event. To see more pics, just