Lem'ka - The term 'Eraserhead' only seems to be from one scene. In this scene, ***Spoilers follow. Do now read if you intend to see the film!*** Henry, the main character, has a dream where he is in a theatre inside his radiator, with a lady with unusually large cheeks. She is on the stage singing, 'In heaven, everything is fine . . .', after which, he reaches out to touch her, but experiences a blinding light when he does. Then, a tree, which is a larger version of the one on his bedside table, is wheeled onstage. Then his head falls off, and a larger version of the head of his deformed baby grows in its place. His head is on the floor of the stage in a puddle of its own blood, which it then sinks into and falls down a tall building and lands on the ground with a splat. It is still in one piece, so a young boy picks it up and takes in to some sort of factory where he sells it to two men who use it to make pencil erasers. ***End of spoilers.***
A0;Like I said, that's not the sort of scene you would want spoiled for you if you wanted to see the film!
A0;Timbalisto - Is it a horror movie? That's an interesting question. It certainly has horror elements, and a fair amount of blood and gore in places, but it's not horror as in scary, just a little spooky and confusing. There are no skeletons, ghosts, undead or zombies, and there is no connection to the occult.