Georgina Spelvin originally signed on to run the commissary, cooking for and feeding the cast and crew. Even after she was cast in the lead role, she continued to serve on location as the company cook.
Sue Flaken was originally cast to play the lead role of Justine Jones, but a day or two before filming began she had to pull out due to an impacted wisdom tooth. However, she was recovered enough near the end of filming and was given a three-way scene with her replacement Georgina Spelvin and Marc Stevens.
The boa constrictor that "co-stars" with Georgina Spelvin was the real-life pet of Marc Stevens. When Gerard Damiano spotted Spelvin fearlessly playing with "Herman" (the snake's name), he made the spot decision to have a scene pairing the two of them in the movie.
Gerard Damiano edited the opening suicide scene to the song "Bridge Over Troubled Waters" by Paul Simon and Art Garfunkel. Damiano tried to get rights to use the song in the film but was unable to secure permission.