Errores

About halfway into the film, when Tony and Lauren pull into the parking space in front of the building with yellow and blue doors, they pull in behind a white sports car with a black top. The cars across the street are white and red. The camera angle then changes to show them exiting the car, only now the car in front of them is a tan Volkswagen Beetle and the cars across the street have all changed to blue and black Volkswagen Beetles.

Early in the film, a couple leave a house and climb into a Jaguar which is parked facing a Triumph 2000, next to a parking meter with a cover over it. Across the road there are several cars parked. The shot then changes to a girl waving good-bye to the couple, then back to the Jaguar as it drives away, only now there is a different car in place of the Triumph 2000, the cover on the parking meter has disappeared and so have all the cars parked on the other side of the road.

In the film, as Tony attacks Professor Nolter, gaps in his mutated body costume become visible a few times and reveal light-colored underclothes, particularly under his chin.