What Happens in Vegas is a 2008 American romantic comedy film from 20th Century Fox starring Cameron Diaz and Ashton Kutcher. The title is based on the marketing catchphrase, "What happens in Vegas, stays in Vegas."
In New York City, high-strung stockbroker Joy Ellis McNally (Cameron Diaz) is dumped by her fiancé at a surprise birthday she throws for him. At the same time easy-going carpenter Jack Fuller (Ashton Kutcher) is fired from his job by his father, Jack, Sr. (Treat Williams). Both become emotionally distraught and, with best friends Tipper (Lake Bell), a bartender, and Hater (Rob Corddry), a District Attorney, take a debauched trip to Las Vegas.
Joy and Jack meet by chance when they are given the same hotel room because of a computer error. After clearing up the misunderstanding and receiving upgraded rooms and coupons to various clubs, they party and drink together and end up getting married. The next morning, they realize it was a mistake and decide to divorce.
Before they do so, Jack uses a quarter Joy gives him in a slot machine. He hits a three million dollar jackpot and Joy reminds Jack that they are married and hence, she is entitled to half of the money. The couple
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