The Five Deadly Venoms. A martial arts classic. When I saw this for the first time at college, it was the humorous bad dub. Now that I've seen the Chinese language version I can better appreciate the artistry that went into it.

A dying martial arts master sends his novice student to check on five former students, all of whom have mastered a technique based on a poisonous animal: snake, scorpion, centipede, gecko, and toad. Naturally some are using their powers for personal gain, so it pits the good ones versus the bad ones.

It's both literally and allegorically about poison: the way that people can easily be bought and corrupted by wealth and power.