Cameron Diaz and Ashton Kutcher in What Happens in Vegas (2008)

Cameron Diaz and Lake Bell in What Happens in Vegas (2008)

Ashton Kutcher, Zach Galifianakis, and Rob Corddry in What Happens in Vegas (2008)

Ashton Kutcher at an event for What Happens in Vegas (2008)

Ashton Kutcher in What Happens in Vegas (2008)

Lake Bell in What Happens in Vegas (2008)

Cameron Diaz in What Happens in Vegas (2008)

Queen Latifah in What Happens in Vegas (2008)

Rob Corddry in What Happens in Vegas (2008)

Caroline on the set of "What Happens In Vegas" with Jason Sudeikis.