Visible crew/equipment: In the hospital room, the nurse turns on the television to see Joan replace Christina in her soap opera, we see the crew in the reflection of the blank screen. We also see them when the nurse turns the TV off.
Factual error: When Christina mixes a drink for one of Mommie's "guests" she bends down behind the bar to put a bottle back. Sitting on top of the bar is a Trigger Sprayer bottle of "Fantastick" - a spray that did not come out until the late 60's.
Joan Crawford: Don't fuck with me, fellas! This ain't my first time at the rodeo.
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.