The scene where the snowbeast attacks the town hall during the snow queen ceremony was written in to replace a previously scripted and filmed attack scene that was deemed too violent to be aired on television.
Based on the Bigfoot creature that was seen for over 100 years in Colorado and the Pacific Northwest. Joseph Stefano wrote the script, taking much of the information from Roger Patterson's encounter with a Bigfoot in 1967.
There are two versions of this movie--the original aired version that ran 72 minutes and a longer version that runs 88 minutes.
While shooting on location in the Colorado mountains, the temperatures would rarely rise above five degrees during the day and would drop well below zero during the evening. In fact, while shooting the scene where Gar and Tony talk in the hot tub the actors' wet hair would actually start to freeze during filming.