Corrected entry: In the scene at the breakfast table where the family is discussing wether or not Maggie should become a debutante, Fran refers to Maggie as Angela, the name of the actress who plays Maggie.
Corrected entry: Nile's opens the door for CeCe. She walks into the room where everyone is sitting. Behind her you see someone hidden by the wall and then run across the hall opening.
Correction: It is Maggie who is walking back there.
Bowling 255 is correct. I went back and rewatched this scene and it is indeed Maggie in her peach shirt and plaid pants. She hesitates as she walks out, so it does look like an accident. She steps back and then walks out again, but the scene cuts to her already standing by the stairs. So this is actually a continuity error.
Corrected entry: In the office, when Maxwell's phone on his desk rings, the ringing sound is an old-fashioned telephone bell, although the phone is a modern electronic one.
Correction: Many electric telephones can be programmed to have various rings. The telephone in this scene could have been programmed to sound like an old fashioned phone.
Correction: It's a litte hard to hear but (also according to the subtitles) Fran says "But, angel, I think, .". And the first name if the actress who plays Maggie is Nicholle.