Joy (Diaz) has just been dumped by her fiance in the middle of trying to throw him a surprise party, and Jack (Kutcher) has just been fired, by his dad, no less. The two go to Las Vegas with their best friends to blow off some steam and end up drunkenly tying the knot. After realizing their mistake and planning to get an annulment, Jack hits the jackpot on a slot machine with Joy's quarter. Before either of them can see a cent of the money, a hard-nosed judge forces them to spend 6 months trying to make their marriage work.
This film provides examples of:
- Accidental Marriage: The protagonists accidentally end up married to each other after accidentally getting booked in the same room in Las Vegas and subsequently getting drunk and going out to find a wedding chapel.
- Awful Wedded Life: Jack and Joy both fill the gender stereotypes of this trope to a T - Jack is a carefree slob with no interest whatsoever in monogomy, while Jill is a professional, high-strung neat freak who wants commitment and flips out whenever a guy leaves the seat up.
- Belligerent Sexual Tension: Lots of it between Jack and Joy. Also implied and confirmed in The Stinger between Hater and Tipper.
- Cool and Unusual Punishment: "I sentence you to six months hard marriage."
- Domestic Abuser: Jack tries to frame Joy as this in order to get all the money himself, but didn't count on her filming his friends beating him up in order to do so.
- Manchild: Jack. Lampshaded by Joy, who points out that he can't even keep a job with his own father.
- Oh, Crap!: Joy's reaction to waking up with a permanent "Jack & Joy" tattoo and a Vegas wedding ring.
- Red-and-White Comedy Poster: The DVD cover is designed after this trope.