What movie was directed by Tom Vaughan and stars an actress that also starred in The Mask and My Best Friend's Wedding?
Cameron Diaz: Cameron Michelle Diaz-Madden (born August 30, 1972) is an American actress, comedian, producer, former fashion model and author. Cameron Diaz:  She rose to stardom with roles in "The Mask" (1994), "My Best Friend's Wedding" (1997) and "There's Something About Mary" (1998), and is also known for voicing the character of Princess Fiona in the "Shrek" series (2001–2010). What Happens in Vegas: What Happens in Vegas is a 2008 American comedy film directed by Tom Vaughan, written by Dana Fox and starring Cameron Diaz and Ashton Kutcher.
What Happens in Vegas