Revealing mistake: When Jake and Elwood are driving through the mall, they leave by driving through some store, if you watch as the people run to get out of the way, a black man with an apron on runs right into the camera. (00:31:40)
Revealing mistake: When Popeye shoves the Taxman backwards, watch carefully. When the Taxman goes sliding down the ramp, just before he hits the water you can see the board that he was sliding on. Also, there is no motion from his arms, legs, or head.