A Day in the Death of Joe Egg 1972 DVD (Region 1 Playable in North America - The US, Canada, Mexico, etc) Color. Full Frame.
Starring: Alan Bates, Janet Suzman, Peter Bowles.
A couple uses extremely black comedy to survive taking care of a daughter who is nearly completely brain dead. They take turns doing the daughter's voice and stare into the eyes of death and emotional trauma with a humor that hides their pain.
Based on the play by Edward Albee.