Wise Guys (1986)

Harry Valentini and Moe Dickstein are goons for the Newark mob boss Castelo. They are sent to the race track to place a bet on a horse but screw it up by betting on the wrong horse. Now they owe $250,000 but they separately get an offer to work it off; by killing the other one. Together they go off to Atlantic City where Harry's mobster uncle Mike may be able to bail them out.