Burns falls off his horse

During a scene in Mr. Burns' entry for the Springfield Film Festival, "A Burns for All Seasons", Mr. Burns promises to the villagers that he would bring work to their town. After his speech, Burns' horse gallops off, but he falls out of the saddle, and ends up getting dragged back and forth on the ground as the horse runs out of and back into the scene, which left Burns and the film's director Señor Spielbergo with no choice but to include it in the finished film, and Burns even laments that he and his crew "did twenty takes" during the shooting of that scene and the one seen in the finished film was the best one, which leaves one to wonder how bad the other nineteen takes were during the making of Burns' movie.

Example of:
Epic Fail