Question: What movie was directed by Tom Vaughan and stars an actress that also starred in The Mask and My Best Friend's Wedding?

Context paragraphs:
Some Kind of Beautiful: Some Kind of Beautiful (Canadian title: How to Make Love Like an Englishman, UK title: Lessons in Love) is a 2014 comedy/romance film written by Matthew Newman and directed by Tom Vaughan.  The film stars Pierce Brosnan, Jessica Alba and Salma Hayek.  The movie is produced by Kevin Frakes and Richard Lewis.

He Knew He Was Right (TV serial): He Knew He Was Right was a 2004 BBC TV adaptation of the Anthony Trollope novel "He Knew He Was Right".  It was directed by Tom Vaughan from a screenplay by Andrew Davies and starred Oliver Dimsdale, Laura Fraser, and Bill Nighy.  It was originally broadcast on the BBC in four hourly episodes.

Starter for 10 (film): Starter for 10 is a 2006 British comedy-drama film directed by Tom Vaughan from a screenplay by David Nicholls, adapted from his own novel "Starter for Ten".  The film stars James McAvoy as a university student who wins a place on a "University Challenge" quiz team.  It premiered at the Toronto International Film Festival in September 2006, and was released in the UK and Ireland on 10 November 2006, and in Canada and the US on 23 February 2007.

Tom Vaughan (actor): Tom Vaughan (born in Stafford, on 4 August 1985) is an English television actor, best known for playing the part of Spike, a DJ and love interest of John Paul McQueen in British Channel 4 series "Hollyoaks" from March 2007 until August 2007.

Mere Yaar Ki Shaadi Hai: Mere Yaar Ki Shaadi Hai (English: "It's My Friend's Wedding") is a 2002 Indian Bollywood film directed by Sanjay Gadhvi and produced by Yash Chopra and Aditya Chopra under Yash Raj Films.  The film starred Uday Chopra, Jimmy Shergill, Bipasha Basu and Tulip Joshi.  The film was said to be partly inspired by "My Best Friend's Wedding" (1997).  The director Gadhvi, however, claims that he mainly drew from earlier Hindi films and that "My Best Friend's Wedding" only provided less than 1% of the inspiration for his film.

Cold Feet (series 2): The second series of the British comedy-drama television series Cold Feet was first broadcast on the ITV network from 26 September to 31 October 1999.  The six episodes were written by series creator Mike Bullen, produced by Christine Langan, and directed by Tom Hooper, Tom Vaughan and Pete Travis.  The storylines focus on three couples: Adam Williams and Rachel Bradley, Pete and Jenny Gifford, and David and Karen Marsden who are played by James Nesbitt, Helen Baxendale, John Thomson, Fay Ripley, Robert Bathurst and Hermione Norris respectively.

Playing House (2011 film): Playing House is a 2011 American direct-to-video thriller film directed by Tom Vaughan starring Shelley Calene-Black, Alex Dorman and Mari E. Ferguson in lead roles.

Cameron Diaz: Cameron Michelle Diaz-Madden (born August 30, 1972) is an American actress, comedian, producer, former fashion model and author.  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).  Other high-profile films include "Charlie's Angels" (2000) and its sequel "" (2003), "The Sweetest Thing" (2002), "In Her Shoes" (2005), "The Holiday" (2006), "What Happens in Vegas" (2008), "My Sister's Keeper" (2009), "Knight and Day" (2010), "The Green Hornet" (2011), "Bad Teacher" (2011), "What to Expect When You're Expecting" (2012), "The Counselor" (2013), "The Other Woman", "Sex Tape", and " Annie" (all 2014).

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.  The title is based on the Las Vegas marketing catchphrase "What happens in Vegas, stays in Vegas."

So Undercover: So Undercover is a 2012 American action-comedy film directed by Tom Vaughan and written by Allan Loeb and Steven Pearl.  Starring Miley Cyrus, Jeremy Piven, and Mike O'Malley, the film was released for the first time in the United Arab Emirates on December 6, 2012 and released direct-to-video in the United States on February 5, 2013.  The film has been released in theatres of only 13 countries worldwide.

Supporting paragraphs: Cameron Diaz What Happens in Vegas
Answer: What Happens in Vegas