The Warriors is a classic, someone mentioned that before.
one awesome movie I didn't see posted (did a quick scan) was Dead Alive (also called Braindead.)
a new zealand zombie movie that involved wererat-monkeys (something to do with rats raping monkeys, creating an accursed breed), when they bite humans, humans turn into zombies.
has one of the best lines from a movie "I kick ass for the Lord", with the priest doing martial arts.
also like the part where the main character is using a lawnmower like a shield, killing a party full of zombies.
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