Peter Falk was originally slated to have a cameo in this film. However, director Ted V. Mikels cut Falk's scene, saying that Falk was too comedic for what he saw as a serious role in a sci-fi/horror film.
Tura's dress is pink when she shoots the guy in her apartment, then is green when they get back from trying to drive away with the body then it turns back to pink again when they are proceeding from taking care of the other guy to going to search for the mad doctor's lab.
When Tyros and Juan pull into the parking space, they completely miss their mark and straddle the line. After a quick cut to a cop watching them, we cut back to the car and it is pulled perfectly into the space.