“The Manson Brothers Midnight Zombie Massacre” (*1/2 out of four) was a sputtering, stupid horror thriller about two former pro wrestlers (Chris Margaretis and Mike Carey) who are relegated to low-budget wrestling/MMA work to stay active and find that their latest job is to fight zombies in a caged arena and save humanity. Obviously you know with a title like that watch you’re paying for but film is done with little conviction and thus runs out of steam soon. Naming the brothers Manson is cleverest thing in this one-joke script; D.B. Sweeney also shows up as a sleazy promoter named Vic Quickbuck (are you laughing yet?).