No animals were in the screenplay. The animals that appear in the film wouldn't move out of the shot when the location owner called them.
Wild Bears forced production to abandon a location and find another one for the outdoor scenes with Bronson Pinchot.
Actress Seregon O'Dassey appeared in Playboy.
5 different stunt/double actors played the Gorilla (while masked).
A freak snowstorm, 'Snowtober', dropped 30+ inches of snow over the last weekend of production. All of the films locations and housing for Cast/Crew lost power. Production was forced to relocate over 20 people in the Cast/Crew to the directors house, which survived the storm and had power.