'Last Vegas' trailer: A new Wolf Pack hits Sin City

Just when you thought you’ve had your fill of male foursomes taking over Sin City, Hollywood’s got another kind of quartet in its back pocket — a sexagenarian one.

In Last Vegas, Billy (Michael Douglas) is about to get married to a woman nearly half his age. “She’s almost 32!” he assures pal Archie (played by Morgan Freeman), who retorts, “I have a hemorrhoid that’s almost 32!”

A senior-citizen version of The Hangover, Billy rounds up the rest of their childhood friends, Paddy (Robert De Niro) and Sam (Kevin Kline) for a bachelor’s party set in — you guessed it — Las Vegas, the land of havoc and mischief.

Mayhem, missed medications, and many goofy generational misunderstandings abound in this comedy, featuring leading men we haven’t yet seen in such rickety form. Check out the trailer below:

Last Vegas is slated for a November 1 release.