Jon Turteltaub directs this all-star buddy comedy following four past-their-prime friends out to set the Vegas strip alight on a four-night stag party. When last-bachelor-standing Billy (Michael Douglas) informs his lifelong buddies Paddy (Robert De Niro), Archie (Morgan Freeman), and Sam (Kevin Klein) that he's finally getting hitched, the four friends decide to head off to Las Vegas to act anything but their age for one last time. But once they hit the streets, the boys soon discover that things have changed a lot since their glory days, and that for the old-school thrill seekers, the party has only just begun.