The machine producing the bubbles for the finale was responsible for one of the greatest filming fiascoes in movie history. On the first day of filming the finale, the gas produced by the bubbles caused Vincente Minnelli's cameraman to faint, on top of a forty foot lift. While Minnelli struggled to stop his cameraman from falling, the bubbles continued to pour from the machine to such an extent that the fire brigade was called to turn it off. Even with the machine under control, the gas from the bubbles was a constant hazard. James Melton filmed with a wet handkerchief in his mouth to protect himself!