90s sci-fi movie shot in Montreal about Roddy Piper as a cop who goes after his former partner (Billy Drago) who has been infected with an alien virus.
https://www.imdb.com/title/tt0117566/
The IMDB trivia entry saying the director decided to dub out uses of the f word to try to get a lower rating is incorrect. The original US DVD and VHS version is uncut. The Canadian version (which is the one on Tubi and Amazon Prime) is the edited one and all of the profanity in that version is censored. Not just the f word.
The uncut version runs 90 minutes and 30 seconds. Begins with the CineTel films logo. and has a brighter look.
The edited version is 92 minutes and 48 seconds. It begins with no studio logo. and the visual quality is much darker.