This movie is so goofy. The music is by Robert Wyatt, aka Soft Machine. It's a bunch of synth-y noodling and ambient, wannabe Brian Eno-type stuff. Still pretty effective, but says more about the filmmakers intentions than the actual footage being shown. Like the creepy music they play when they want to make someone with a mullet seem sinister.
Julie Christie narrates it, and she sounds really prissy. Other prissy people include the gay pro-animal rights man-on-the-street interviewer, the gay guy he interviews, the mixed Ziggy Stardust, foolish-looking woman, and several Brits. Ray Krock is also featured.
Highlights include the de-beaking of chicks, floors that drain poo, a wasp pestering a weakling chick ("a mother could have helped it"), on-set footage of a McDonald's commercial ("Ronald harvests the hamburgers from the hamburger patch"), guts spilling out of a cow (complete with exploding bladder), radiation experiments on donkeys ("anal ulcers", says Christie), post-nuke pigs, hog-sow "rape", Long Island-y/jewish lady, LSD test on a monkey, and the dramatic last gasp of a white lab rat.
The most unbelievable part to me was the footage of a Japanese experiment sponsored by the Harbin clinic. They attach the head and forelegs of one dog onto the back of another. It's freaky.
This film actually does provide food for thought about the purposes of animal experiments, suggesting that they may pave the way for how humans are teated in the future. The footage with monkeys is by far the most thought-provoking in this light. Frightening and sad at times, but also entertaining.