The story Elektra tells about dating a man who does not seem to know she is a porn actress until after they have sex, is a true story. This actually happened to porn star Heather Hunter.
When Cora is in the bathroom with Nick she is still wearing her engagement ring but she gave it to her flight attendant friend before she went into the bathroom with him.
When Maxine is trying to undress herself on the bed, after Bambi drops her home very drunk, we see her with stockings in one scene and then they have immediately disappeared in the next shot.