Kevin Kline is finalizing a deal to round out the main cast of Last Vegas, alongside Robert De Niro, Michael Douglas, and Morgan Freeman.

The story centers around an aging womanizer (Michael Douglas), who is the last of his friends to finally settle down and get married. Kevin Kline, Robert De Niro, and Morgan Freeman play his old buddies who reunite in Las Vegas for the wedding. No details were given regarding Kevin Kline's role, although we reported in April that Robert De Niro's character also falls for the bride, who is half their age.

Jon Turteltaub will direct this Oscar-winning quartet from a screenplay by Dan Fogelman (Crazy Stupid Love), with Laurence Mark and Amy Baer producing. Production is scheduled to begin this fall in Las Vegas.