De Niro and Douglas' wild trip to Las Vegas starts on 20 December.

CBS Films announced that their upcoming comedy "Las Vegas" will hit theaters on 20 December 2013. The film which is directed by Jon Turtletaub and represents the strong return for Michael Douglas after his long treatment from cancer.The film, written by Dan Fogelman, revolves around four retired friends over 60 and their wild trip to Las Vegas. The film stars Robert De Niro, Morgan Freeman, Kevin Kline and Mary Steenburgen. Douglas' last acting role was a small one in "Haywire" while De Niro is currently shooting his role in "Malavita" with Michelle Pfiffer and Tommy Lee Jones. The film is about a retired American gangster who moves to Normandy city with his family to live under a witness protection program but is forced to return to his work with the gangs.