This 1978 horror movie, made in Vancouver, Canada, reflects the era in which it was created. Despite its limited budget and graphic scenes—though director John Frankenheimer removed some instances of violence—it falls into a peculiar category that might be described as "eco-horror." The basic premise involves nature retaliating; specifically, toxic substances lead to the creation of a mutated bear-like animal. This creature is fiercely protective of her young and reacts aggressively toward anything perceived as a danger. Stories persist about mistreatment of animals during filming, including claims that a raccoon was restrained and faced potential harm. There's also a report of a raccoon being thrown into a fire, though it turned out to be a prop. Setting aside the alleged animal abuse incidents, the film delivers exactly what one might anticipate.

Source on TMDB