When the Wind Blows (1986)
Incredibly depressing animated (a hybrid of drawn and stop-motion animation) film from Jimmy Murakami. The plot follows the preparation of a naive old couple in Cold War-era England for a nuclear strike from Russia. Of course, the strike is successful and the rest of the film follows the gradual death of the couple as they are consumed by radiation sickness. Incredibly harrowing and bleak, definitely a film I'm not in a hurry to see again but a fantastic piece all the same.