Plot Holes (Spolier Alert!)
Anne's brain calls for help in the middle of the movie, Dr. Michael Hfuhruhurr hears her cries telepathically and rushes over to the laboratory. He finds her brain by the gorilla, she is set to go inside the gorilla (to the best of my memory). But why does she cry for help? She can't make use of any of the five senses, the only way she can find out what's going on is if Dr. Michael Hfuhruhurr tells her.
The "Elevator Killer" injects his victims with window cleaner, so everything dies except for the brain. Towards the end of the movie, Dr. Michael Hfuhruhurr is looking for a body to put Anne's brain in. So why does he decide to inject a womans body with window cleaner? Wont everything die except for the brain, thus making the body useless?
Although these plotholes are very noticeable, they take nothing away from a movie with a sole purpose of having fun.