- Cast the Expert: Keith the clean room guy at University of Texas at Dallas is played by... Keith Bradshaw, the clean room guy at UTD.
- Incestuous Casting: As per the commentary, Aaron (Shane Carruth)'s wife is played by Shane Carruth's sister.
- No Budget: It was made for a mere $7,000.
- What Could Have Been: After the movie's success, Shane Carruth attempted to shoot the followup "A Topiary", a Mind Screw involving repeating patterns, golden ratios, time travel and young boys creating artificial life. He abandoned the project when he realized that he was the only one taking it seriously enough.
Trivia / Primer