Michael Douglas, Robert De Niro, Morgan Freeman and Kevin Kline star in the bachelor party comedy. Watch the movie trailer for Last Vegas below. Old friends Paddy (De Niro), Archie (Freeman) and Sam (Kline) decide to throw a Las Vegas bachelor party for Billy (Douglas), the last friend engaged to be married. However, upon arriving in Vegas, the four quickly realize that the decades have transformed Sin City and tested their friendship in ways they never imagined.
Billy (Michael Douglas), Paddy (Robert De Niro), Archie (Morgan Freeman) and Sam (Kevin Kline) have been best friends since childhood. So when Billy, the group's sworn bachelor, finally proposes to his thirty-something (of course) girlfriend, the four head to Las Vegas with a plan to stop acting their age and relive their glory days. However, upon arriving, the four quickly realize that the decades have transformed Sin City and tested their friendship in ways they never imagined. The Rat Pack may have once played the Sands and Cirque du Soleil may now rule the Strip, but it's these four who are taking over Vegas.