The Wild Rebels

Jeff Gillan, who played the non-speaking role of Fats, also played the infamous Santa Claus that kicks Ralphie down the ramp in A Christmas Story.

At the beginning of the movie, a frustrated Rod decides to "auction off" his brand new trailer. While he speaks to the assembled crowd he motions to the trailer, which we then see with its door open and an acoustic guitar, quite prominently, leaning against the tires inside. When the people turn and look at the trailer a second later, the guitar is tucked in the right side of the trailer door and is barely visible.

Featured in Mystery Science Theater 3000: Wild Rebels (1990)