Don’t let the (relatively) nice poster fool you: I Was a Teenage Zombie is a shoelace budgeted, amateurish horror movie that has nothing to offer but horrible production quality and bad makeup.
And it’s not even the teenage main character that gets turned into a zombie but a 70s style hispanic pimp (read: falls into a river and climbs up with his face mucked with green body paint). Then, he then goes around humping people. I kid you not.
You have to wait until the one hour mark for anything interesting to happen to the actual teenager, and even after that it’s not too interesting. He gets body painted in a similar fashion and walks around cluelessly until he fights the pimp, and the end credits roll.
It’s not every day that one comes across something this inadequate.