Trailer! Actress Megan Fox Strips for This is 40

Megan Fox is back on the big screen. Fox is a tease in the new teaser for the upcoming comedy This is 40.

The film co-stars Paul Rudd and Leslie Mann as a couple dealing with the struggles of a marriage. In the clip, Fox strips down to almost nothing.

Academy Award nominee Melissa McCarthy also brings her comedic talents to film. "This is 40" is a spinoff of 2007's "Knocked Up," produced and directed by Judd Apatow.

This is 40 is set for release in December 2012.