In the category Film Noir for 800 points...
In Out of the Past, Jeff Bailey (Robert Mitchum) is standing by a running stream contemplating the mess he's gotten himself into with Kathy (Jane Greer). Unbeknownst to him, Joe Stephanos (Paul Valentine) is standing on a ledge above him, about to shoot him. The Kid (Dickie Moore) sees the peril Jeff is in, and uses something unique to snag Joe's coat and pull him off the ledge. Joee falls to his death at the base of a waterfall that feeds the stream Jeff is standing by. What is the unique object that the Kid uses?