Twilight of the Cockroaches (1987) (Uncut) [LVD9201]

Twilight of the Cockroaches (ゴキブリたちの黄昏, Gokiburi-tachi no Tasogare) is a 1987 Japanese fantasy drama film written and directed by Hiroaki Yoshida that combines live-action footage with animation. The plot concerns a society of cockroaches who live peacefully in the apartment of a bachelor named Saito, until a woman moves in and the humans begin to exterminate the cockroaches. The cockroaches are depicted through animation, and the humans are depicted through live-action footage. 

Japanese dialogue with English subs.