Continuity: The word "Sender" written on the blackboard changes frequently.
Audio/visual unsynchronized: When the Stupids arrive at the TV station, they rear end a smoking woman's vehicle. When they leave the front of the car is magically fixed.
Crew or equipment visible: When Mrs. Stupid jumps into the elevator at the museum, a large corner of the green safety mat she jumps onto can be seen.
Miscellaneous: The garbage truck stops only for the Stupid's garbage can, and ignores the others.