It's A Wonderful Life trivia: improv

As Uncle Billy is leaving George's house drunk, it sounds as if he stumbles over some trash cans on the sidewalk. In fact, a crew member dropped some equipment right after Uncle Billy left the screen. Both actors continued with the scene ("I'm all right, I'm all right!") and director Frank Capra decided to use it in the final cut. He gave the clumsy stagehand a $10 bonus for "improving the sound."