Jack Fuller (Ashton Kutcher) and Joy McNally (Cameron Diaz) are two strangers who awaken together to discover they've gotten married following a night of debauchery in Sin City. and one of them.. Jack Fuller (Ashton Kutcher) and Joy McNally (Cameron Diaz) are two strangers who awaken together to discover they've gotten married following a night of debauchery in Sin City.
Synopsis During a wild vacation in Las Vegas, career woman Joy McNally (Cameron Diaz) and playboy Jack Fuller (Ashton Kutcher) come to the sober realization that they have married each other after.. Where to watch What Happens in Vegas (2008) starring Cameron Diaz, Ashton Kutcher, Rob Corddry and directed by Tom Vaughan. Stream What Happens in Vegas online today!