Revealing mistake: Terri is replaced by a stuntman in a dark blond wig once she puts on her motorcycle helmet outside the hardware store.
Revealing mistake: When the plumber is climbing out of the very snow covered well, the snow on top never shifts - an impossibility considering the actor's size and weight. The snow on the ground moves as expected. (01:05:10)
Revealing mistake: When Frank Bauggs is falling from the building, he is a very obvious dummy. His body limps around too much. (00:50:45)