This is the muther of all underwater Nazi/ Zombie movies. Wait, are there any other underwater Nazi/ Zombie movies? I'd imagine the answer would be no.
In the movie Peter "I'm at the end of my career so I'm drunk all day" Cushing plays a Nazi commandant on a remote island who fathers a group of zombies (known as The Death Corps). The budget must have been super low. No nighttime shots, all day shots. But that's okay cause this shit kicks ass.
I originally saw this at the New Beverly Cinema here in LA during one of their Grindhouse nights. It played as a double feature (of course) with Burial Ground. Fuck, that was a good double feature.
I just picked this up on DVD. Blue Underground is the company that released it. They put out a lot of great hardcore garbage. At the bare minimum get some 70's beer (Pabst Blue Ribbon or Schlitz) and rent this mofo.
3 out of 4 exploited stars. See the freaky German trailer below...