Kelly's Heroes (1970)

http://www.imdb.com/title/tt0065938/

During World War II a German Colonel is captured by the Americans but before he can be interrogated an artillery barrage hits the camp. However, Ex-Lieutenant Kelly manages to reach the Colonel, get him drunk and learn that he is on a secret mission to ship $16,000,000 of gold to a base in France. Kelly is determined to get the gold and plans for himself and a few of his fellow soldiers to slip into enemy territory and steal the bullion.During World War II, Lieutenant Kelly learns of a German bank located behind enemy lines containing 16 million dollars in gold bars. His platoon, led by Big Joe, has three days of R&R coming, so, with the aid of hustler Crapgame, anachronistic hippie Oddball, three Sherman tanks and a touch of irreverence, Kelly leads his men deep into French territory to steal the gold for themselves.