There’s not a lot of reason to seek out the forgettable and forgotten zombie-alien invasion movie Invisible Invaders. Maybe if you were on a quest to see every movie John Carradine ever made? Or a quest like my own, to see every zombie movie ever made? Both would suffice, but in either case, put it near the end of your list — it sucks.
Its primary sin is it’s boring. A story about unstoppable aliens who can reanimate the dead should not be this dull. But if you tell that story largely via voiceover and stock footage, I guess it isn’t too surprising. The majority of the rest of the “action” takes place in a bunker, where four people argue, fight and “do science.” The result of their “science” is a goofy looking sonic raygun prop that can stop the aliens, thus saving the Earth. Also, two of them fall in love and the asshole guy dies.
Zombies? Yeah, there are zombies. They’re pretty incidental, though. The aliens occupy dead people in order to … uh … occupy dead people? Once they strangle a guy and they seem to cause some trouble elsewhere, but mostly they just stagger around looking vaguely creepy. I guess cinematic scares were hard to come by in the ’50s and maybe this was enough? Anyway, these are among the least interesting zombies ever. Even Plan 9 from Outer Space has them beat.
To reiterate: don’t watch this, it really isn’t worth your time.