To save on money, all the locations were within 25 minutes of the director's house. During the production there was a big fire that destroyed lots of properties. Smoke can be seen in the background in some scenes. See more

Goofs

When performing the initial brain transplant and the doctor is experimenting with stimulating Michael's brain to cause his body to react, the first reaction causes his leg to lift. You can clearly see the hand of the male actor holding a fake phallus under the hospital gown, which he lifts during the next "body reaction." See more