Question: Who directed the film "What Happens in Vegas" that Kryten Ritter had a role in?

Context paragraphs:
Jonathan Morgan Heit: Jonathan Morgan Heit (born July 16, 2000) is an American child actor known for his role in the Adam Sandler film, "Bedtime Stories", where he played Patrick.  He also directed and wrote a short film entitled "It Happens", about a man who has a terrible day.

Kuch Kuch Hota Hai: Kuch Kuch Hota Hai (English: "Something Happens") also known as KKHH, is an Indian Hindi coming-of-age romantic comedy drama film, released in India and the United Kingdom on 16 October 1998.  It was written and directed by Karan Johar, and starred the popular on-screen pair of Shah Rukh Khan and Kajol in their fourth film together.  Rani Mukerji featured in a supporting role, while Salman Khan also had an extended-cameo appearance.  Sana Saeed, who was featured in a supporting role, made her film debut in this movie.

Stanley's Dinosaur Round-Up: Stanley's Dinosaur Round-Up is a 2006 direct-to-DVD animated adventure film directed by Jeff Buckland and produced by Playhouse Disney and Cartoon Pizza.  It is a feature-film for the animated television series "Stanley".  This film is notable for being the final film role of actor John Ritter who lends his voice to Great Uncle Stew; Ritter died shortly after recording his lines in September 2003 from aortic dissection, two years before the film's release.  The film is dedicated in his memory.

Life Happens: Life Happens (stylized L!fe Happens) is a 2011 comedy film directed by Kat Coiro and written by Coiro and Krysten Ritter.  The film stars Ritter, Kate Bosworth, Kristen Johnston, Geoff Stults, Jason Biggs, and Rachel Bilson.  Ritter plays the main character, Kim, who lives with her two roommates, Deena (Bosworth) and Laura (Bilson), in Los Angeles.  Kim becomes pregnant after a one-night stand so she turns to her friends for help.  "L!fe Happens" opened in theaters on April 13, 2012.

Krysten Ritter: Krysten Alyce Ritter (born December 16, 1981) is an American actress and former model.  Ritter is known for her roles as lead superheroine Jessica Jones on the Marvel Cinematic Universe series "Jessica Jones" and "The Defenders", Jane Margolis on the AMC drama series "Breaking Bad", and Chloe on the ABC comedy series "Don't Trust the B---- in Apartment 23".  She has appeared in films such as "What Happens in Vegas" (2008), "27 Dresses" (2008), "Confessions of a Shopaholic" (2009), "She's Out of My League" (2010), "Veronica Mars" (2014), and "Big Eyes" (2014).  She has also appeared in roles "Gravity", "'Til Death", "Veronica Mars", and "The Blacklist".

The Incident (1967 film): The Incident is a 1967 American neo noir film written by Nicholas E. Baehr (based on his teleplay "Ride with Terror", which had been previously adapted as a 1963 television film), directed by Larry Peerce.  The film stars Tony Musante and Martin Sheen (in his first film role) as two street hoods who terrorize 14 passengers sharing a New York City subway car, played by an ensemble cast that includes Beau Bridges, Ruby Dee, Jack Gilford, Ed McMahon, Gary Merrill, Donna Mills, Brock Peters, Thelma Ritter, and Jan Sterling. .

The Model and the Marriage Broker: The Model and the Marriage Broker is a 1951 romantic comedy film about a marriage broker.  Though Jeanne Crain (as the model) is top billed, the movie revolves around Thelma Ritter's character (the broker), in a rare leading role for Ritter.  Scott Brady also stars.  The film is directed by George Cukor and produced by Charles Brackett.

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."

Vithagan: Vithagan (English: Master ) is a Tamil action film directed by R. Parthiban that features himself in the lead along with Poorna.  The film, which has been in making since 2008, released on 18 November 2011 as per schedule.  'Vithagan', which also happens to be the 50th film of Parthipan, has him in the role of a police officer, who is brainy as well as brawny.  With an innovative tagline 'With the gun', 'Vithagan' has Poorna as heroine and music has been composed by Joshua Sridhar of 'Kadhal' fame.  The film opened to extremely negative reviews and bombed at the box office.

Stranger than Fiction (2006 film): Stranger than Fiction is a 2006 American fantasy comedy-drama film directed by Marc Forster, produced by Lindsay Doran, and written by Zach Helm.  The film stars Will Ferrell, Maggie Gyllenhaal, Dustin Hoffman, Queen Latifah, and Emma Thompson.  The main plot follows Harold Crick (portrayed by Ferrell), an IRS worker who begins hearing a disembodied voice narrating his life as it happens – seemingly the text of a novel in which it is stated that he will soon die – and he frantically seeks to somehow prevent that ending.  The film was shot on location in Chicago, and has been praised for its innovative, intelligent story and fine performances.  Ferrell, who came to prominence playing brash comedic parts, garnered particular attention for offering a restrained performance in his first starring dramatic role.

Supporting paragraphs: Krysten Ritter What Happens in Vegas
Answer: Tom Vaughan