No sound was recorded on location, all of it was recreated in post-production, key sound being done Foley (pack of cookies, book, newspaper), others being taken from a sound effects library.
There were actually two cuts of the film. The finished and released version of the film is a video edit cut by Christopher Flynn. As a requirement for the project, a cut & spliced version had to be submitted as well. That version, edited by Paul Giobbe, was only screened once (per the requirement), but Flynn allowed Giobbe to keep the editing credit due to the intense difficulty Giobbe faced in hand-splicing reversal film negative with outdated reel-to-reel editing equipment (no Steenbeck), while trying to match the frame accuracy of Flynn's Digital Betacam edit. "He earned it."