Audio problem: When Joan is scrubbing the floor in the foyer, the sound doesn't match the scrubbing. Joan picks the scrubbing brush off the floor, yet we still hear the scrubbing of the floor with the scrub brush in the air. (00:05:28)
Continuity mistake: When Mommie is cutting Christina's hair it keeps on changing from long to short several times.
Joan Crawford: Why can't you give me the respect that I'm entitled to? Why can't you treat me like I would be treated by any stranger on the street?
Christina Crawford: Because I am not one of your fans!
Trivia: During the rosebush/tree chopping scene, Faye Dunaway is chopping the tree, except when you see the close up. During the close up (when the tree falls), it is actually the films director Frank Perry chopping the tree.