Ashton Kutcher in Notte brava a Las Vegas (2008)

Rob Corddry in Notte brava a Las Vegas (2008)

Cameron Diaz in Notte brava a Las Vegas (2008)

Cameron Diaz and Ashton Kutcher in Notte brava a Las Vegas (2008)

Ashton Kutcher and Rob Corddry in Notte brava a Las Vegas (2008)

Cameron Diaz, Ashton Kutcher, Tom Vaughan, and Tom Vaughn in Notte brava a Las Vegas (2008)

Cameron Diaz and Lake Bell in Notte brava a Las Vegas (2008)

Lake Bell in Notte brava a Las Vegas (2008)

Queen Latifah in Notte brava a Las Vegas (2008)

Caroline with Ashton & Cameron on the set of "What Happens in Vegas."

Caroline on the set of "What Happens In Vegas" with Cameron Diaz.

Caroline on the set of "What Happens In Vegas" with Lake Bell.

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