In the opening sketch, Crow visibly bounces camera left when he falls from the Bots' fort, yet Joel picks him up from camera right.
R. Dean Taylor sang "Indiana Wants Me," not Mark Lindsay.
Joel refers to a floating hand as the ghost of Señor Wences, but Señor Wences was still alive at the time.
During the closing segment, Joel accidentally knocks Tom Servo's head off while they are dancing.
The "special thanks" section of the closing credits includes a spelling error: "The Authors of the 1st Ammendment."