The eerie pulsating sound heard at around 45 minutes is the same as the sound heard in the derelict space station in Lost In Space.
Body count: 11
The lettering style of the credits looks the same as those in Mannix.
Loosely inspired by Philip Zimbardo's Stanford Prison Experiment, the scientist with the natty goatee looks very similar to professor Craig Haney, one of the Stanford professors involved in the real experiment.