Dennis Hopper owns this movie, as he does with every movie he's in. The final act, in the Sawyer cave under the amusement park, is solid gold. I always feel so bad for the guy who gets his face sliced off with an electric knife.
I just saw this for the first time since I rented it on VHS in college. (on Hulu). It's way better than I remembered. Leatherface's sexual awkwardness was hilarious. So was Tom Siedow, an amazing actor who has a tragically sparse IMDB page. He's so good, I was sure I'd seen him in a hundred movies.
The comedy and the horror just keeps exploding together!