Question: Lake Bell is an American actress who starred in a 2008 comedy film that starred Cameron Diaz and Ashton Kutcher, and was directed by who?

Context paragraphs:
Guess Who (film): Guess Who is a 2005 American comedy film about race relations directed by Kevin Rodney Sullivan.  It is a loose remake of the 1967 film "Guess Who's Coming to Dinner", in the form of a romantic comedy.  While the 1967 film covered interracial romance of a black man with a white woman, the 2005 film covered the topic of a white man with a black woman.  The film stars Bernie Mac, Ashton Kutcher, and Zoe Saldana.

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."

Over Her Dead Body: Over Her Dead Body is a 2008 American romantic comedy film starring Eva Longoria, Paul Rudd, Lake Bell, Lindsay Sloane and Jason Biggs.  It was written and directed by Jeff Lowell.  The film is about Kate (Eva Longoria), who dies on the day of her wedding to fiancé Henry (Paul Rudd).  He subsequently begins a relationship with psychic Ashley (Lake Bell) who becomes haunted by Kate trying to sabotage their relationship.

Hodet over vannet: Hodet over vannet is a Norwegian black comedy by director Nils Gaup.  In 1996, a remake of the film was produced which starred Cameron Diaz, entitled "Head Above Water".

I Do...Until I Don't: I Do...Until I Don't is a 2017 American comedy film written and directed by Lake Bell.  The film stars Lake Bell, Ed Helms, Mary Steenburgen, Paul Reiser, Amber Heard, Dolly Wells, and Wyatt Cenac.  The film was released on September 1, 2017, by The Film Arcade.

Benny Ciaramello: Benjamin "Benny" Ciaramello"' (born April 4, 1981) is an American actor.  He first appeared in the blockbuster remake of "War of the Worlds" directed by Steven Spielberg in 2005, next in the independent film "Saint Francis" alongside Dita Von Teese, and then later that same year in "The Guardian" alongside Ashton Kutcher and Kevin Costner.  He would continue on next to star opposite Isabella Rossellini in the showtime pilot "Filthy Gorgeous" written by Ron Nyswaner the Academy Award nominated writer of the film "Philadelphia" and produced by Neil Meron and Craig Zadan the Academy Award-winning producing team of "Chicago".  However, it wasn't until two years later that he became most known to the public for his role as Santiago Herrera, the troubled delinquent in season 2 of the Emmy Award-winning "Friday Night Lights".  Shortly after, he signed a deal with ABC in which he guest starred on multiple programs for the network including his recent work as Scott Murphy in the ABC series "Secrets and Lies" opposite Juliette Lewis and Ryan Phillippe in 2015.  He has recently been cast in the 1920s crime film "Live By Night" as Paulo Bartolo alongside Ben Affleck and Chris Messina.  The film will be directed by Affleck, produced by Leonardo DiCaprio and Warner Brothers, and is set to be released in October 2017.

Lake Bell: Lake Siegel Bell (born March 24, 1979) is an American actress, director, and screenwriter.  She has starred in various television series, including "Boston Legal" (2004–2006), "Surface" (2005–2006), "How to Make It in America" (2010–2011) and "Childrens Hospital" (2008–2016), and in films including "Over Her Dead Body" (2008), "What Happens in Vegas" (2008), "It's Complicated" (2009), "No Strings Attached" (2011), "Million Dollar Arm" (2014) and "The Secret Life of Pets" (2016).

Killers (2010 film): Killers is a 2010 American action comedy film directed by Robert Luketic and starring Katherine Heigl and Ashton Kutcher.  The film was released on June 4, 2010.  The film centers on a young woman (Heigl) who meets the man of her dreams (Kutcher) who turns out to be an assassin.

Ashton Kutcher: Christopher Ashton Kutcher ( ; born February 7, 1978) is an American actor and investor.  Kutcher began his career as a model and began his acting career portraying Michael Kelso in the Fox sitcom "That '70s Show," which aired for eight seasons.  He made his film debut in the romantic comedy "Coming Soon" and became known by audiences in the comedy film "Dude, Where's My Car? ", which was a box office hit.  In 2003, Kutcher appeared in romantic comedies "Just Married" and "My Boss's Daughter" and, the same year, he created, produced, and hosted "Punk'd" which aired on MTV for five seasons until its revival in 2012.  In 2004, Kutcher starred in the lead role of the psychological film "The Butterfly Effect" and gained public recognition.

Knight and Day: Knight and Day is a 2010 American action comedy film starring Tom Cruise and Cameron Diaz.  The film, directed by James Mangold, is Cruise and Diaz's second on-screen collaboration following the 2001 film "Vanilla Sky".  Diaz plays June Havens, a classic car restorer who unwittingly gets caught up with the eccentric secret agent Roy Miller, played by Cruise, who is on the run from the CIA.

Supporting paragraphs: Lake Bell What Happens in Vegas
Answer: Tom Vaughan