Aging pals Billy, Paddy, Archie, and Sam have been best friends since childhood. When Billy finally proposes to his much-younger girlfriend, all four friends go to Las Vegas to celebrate the end of Billy's longtime bachelorhood and relive their glory … Robert De Niro, Morgan Freeman, Michael Douglas, Kevin Kline, Mary Steenburgen, Jerry Ferrara, Romany Malco Added on Paramount 2023-12-28, leaving 2024-11-30. Youtube Trailer