I can't believe it took me so long to finally see this. I had been wanting to see it for quite some time in general, having read and enjoyed a few issues of the magazine, and being a fan of hard rock and heavy metal, but the South Park episode "Major Boobage" really got me wanting to see it. The big push that finally led to me tracking down a copy and watching it though is the unfortunate death of Dan O'Bannon, who was reported dead earlier today (12-18-09).
The animation is top notch- maybe slightly dated by today's standards, but great looking nonetheless. The music (both the score by Elmer Bernstein and the soundtrack by Black Sabbath, Sammy Hagar, Devo, et al) are fantastic. I heard shades of what would later become parts of Bernstein's score for Ghostbusters, and there's nothing wrong with that. While I'm not really into the rock music from the era in which this movie came out (being more of a fa nof stuff before and after this era), which is the stuff on the soudtrack, I liked it. In context, it fits the mood, spirit, and atmosphere perfectly.
This is a wild, fun, and funny sci-fi and fantasy anthology collection featuring lots of sex, violence, gore, and nudity. The voice acting is awesome, with John Candy, Harold Ramis, and EUgene Levy stealing the show. Everything is over the top, and extremely entertaining. As much as I enjoyed it, I can't help but wonder if seeing it in an altered state would add to the greatness...perhaps I'll have to try it sometime.
Bottom line: this is a high water mark for adult oriented animated films that deserves to be seen.