Question: Krysten Alyce Ritter, is an American actress and former model, she has appeared in films such as which 2008 American comedy film directed by Tom Vaughan, written by Dana Fox and starring Cameron Diaz and Ashton Kutcher?
Sentence (from "What Happens in Vegas"): The title is based on the Las Vegas marketing catchphrase "What happens in Vegas, stays in Vegas."
Relevant evidence: No