Drive-In Massacre has got one terrific concept for a slasher film; however the execution of the film is very bad. Now, the film fails because it really has no plot development and the film is slow, lumber on and on and really goes no where. I think this is sad, because the idea for the film is excellent, however, the execution of the film is so bad, and it's awful. This had so much potential to be a good horror film, instead the film is badly acted (even by horror standards) and the plot doesn't unfold it just stays there, becomes boring, lazy and tired. Then you become lazy, tired and bored. This could have been another slasher classic; instead it has the reputation of being an awful slasher with a ruined good idea. If the film would have been made by someone else who actually know the genre, then maybe the film would have been saved. However, Drive-In Massacre suffers from very poor plot development, bad acting, and bad directing and overall a bad story. The idea is great, a killer on the loose in a drive-in is a good idea, however the story sucks, and takes way too long to get to the point. If you're looking for a slasher film with numerous kills, this is not the one. The film is slow and boring. This one of the worst horror films of the 1970's As a slasher film this one has some decent kill scenes, unfortunately the bad direction of the film makes this film a film not worth watching. Drive-In Massacre is not a good film, unlike other entertaining Grindhouse features of the 70's such as Driller Killer, at least that film was entertaining, but Drive-In Massacre is dull, boring and even though it has a good concept for a plot, the filmmakers didn't know how to make that idea work in an effective horror film. This is a film that should be avoided. The title is the best part about this film.