Reese Witherspoon Celebrates Birthday With Monsters And Aliens

The lovely and talented Reese Witherspoon celebrated her 33rd birthday today at the  premiere (hopefully the last one) for her new movie Monsters vs. Aliens. The Legally Blonde actress joined up with co-star Seth Rogen, as the pair greeted fans and posed for pictures at the Gibson Amphitheatre on the Universal City grounds.

Witherspoon voices the character of Susan, a girl-next-door, who is struck on her wedding day by an energy-packed meteor that causes her to grow to 49-feet-11.

“It definitely is the most action-packed movie I’ve ever been in,” Witherspoon said in a Canadian exclusive telephone interview. “(Being animated) makes it a lot easier to kick butt. And the best thing is, I didn’t have to diet to fit into that cat suit.”

Reese only got to work with one of her movie co-stars, Paul Rudd, who voices Susan’s colossally egotistical weatherman fiance, Derek Dietl.

“We got to be in the same room together and collaborate for a day, and that was so awesome because he’s so funny,” Witherspoon says. “He gets to play a really big jerk in this movie and was riffing on it. I’m actually doing my next movie with him (an as-yet-untitled comedy by James L. Brooks).”

Reese Witherspoon and Paul Rudd seem like the perfect team. Looking forward to the movie.

Gallery Info: Reese Witherspoon, Angie Harmon, Rainn Wilson, Alex Kingston, Heather Thomas, Paul Rudd, Seth Rogan, Hugh Laurie, Will Arnett, Amy Poehler, Jonah Hill, Jack Black, Kiefer Sutherland, Donal Logue, Harland Williams and Andy Richter at the Los Angeles premiere of Monsters vs Aliens.