Where is this available?
Amazon!
https://www.amazon.com/dp/B0003JAOO0?tag=bravesoftwa04-20&linkCode=osi&th=1&psc=1&language=en_US
It will show up in places like “Pluto TV” et al but currently...DVD/Bluray only.
I downloaded it from Internet Archive.
I was too young to have watched it in theaters, but I find I like these older movies. They can be cheesy, but it can be fun to also see how the ”greats” we may have been raised with were not actually so original.
I hope this is not too big of a spoiler, but in this movie, Colossus is eventually given a voice. Not being the age of computers, the voice is one of those vibrators that smokers who had tracheotomies, or whatever, often used. I thought it was sufficiently menacing in delivering the quoted speech.