The filmmakers only had twelve hours each day to shoot the movie.
A handful of scenes had to be rewritten throughout the shooting of the movie because of the low budget and tight schedule.
All the characters met each other on an elevator in an earlier draft of the script.
The fire alarm triggering game show music was improvised on the day it was shot.
A full size dummy of Joanna Bobin was made for the sequence in which her character Pamela gets spun around on a giant wheel.