level one and horror . when i saw this film for the first time at 10 and i know it would give me nightmare . it do . surprisingly and a i recall and it be the sound as much a the sight of the monster that cause them . level two and psychoanalytic theory . later a an adult and i saw the story for what it be represent what if the savage and unrestrained instinct we all repress become manifest . level three and pure science fiction . the best way plausibly to realize the plot what if be through the science fiction genre . this be pure science fiction and not the cowboy in space that pass for the genre today . after 43 year and forbidden planet remain the great of all science fiction film . if plan a remake and skg or lucas and watch out .