Ira Brooker’s review published on Letterboxd:
Cyborg Michael Rennie and his high-waisted jumpsuit drop by from the year 2087 to convince a scientist to squelch a breakthrough that will bring about a dystopian future full of cyborgs like Michael Rennie. He's also pursued by a pair of cyborg hitmen in even less flattering jumpsuits.
This is pretty thoughtful stuff for zero-budget mid-'60s sci-fi peppered with dopey comic relief from Wendell Corey's podunk police force and an inexplicable group of lingo-spouting teens. An aging Rennie is as stoically compelling as ever, and it's clear that the whole production struck a chord or two with a young James Cameron.