Some of the special effects still hold up today. There's one in particular toward the middle of the film which is quite good! Some other effects look dated. But forget all that.. Chris Sarandon steals the show! This is straight hypnotic acting. You can't take your eyes off the guy. I wish he had more roles like this because he was born to play this part! The low side of the film is some long sequences of people wandering around and some bad dialogue.