This was also known as "Screamers", which was the title I saw in the ads and years later on the vhs cover. The tagline was, "They're men turned inside out.. and even worse, they're still alive!". I can't believe I still haven't seen it. Sounds like cheese paradise.
Caveat emptor: No one gets turned inside out - man or otherwise. Who knows; if they had followed through on their own advertising, maybe this one would have broke even!
....not that I don't want to see it anyway.
- TGWD