YMMV: Bugsy Malone
- Special Effect Failure: A literal kind. Specifically, the splurge guns, which were supposed to actually shoot wax balls filled with cream (similar to what we see being loaded in one shot). When they proved problematic, it was decided that they would be shown shooting ping-pong balls, with the cream only shown in shots that don't actually feature the guns. This is most evident in the opening scene.