Continuity mistake: In the scene where Skeeter is on the phone with the lady who is interested in the book, she has an ashtray with a lit cigarette in it. In the next shot it is gone and the cigarette is in her hand, the next time it shows her the ashtray is back in its original position.
Continuity mistake: When Skeeter enters Brent's Drugs after the ladies' meeting, Elizabeth has on a pair of purple floral earrings. When she greets Skeeter with a "hey" there are no earrings. The shot then pans to Hilly motioning Elizabeth to move over and the earrings are back again.
Continuity mistake: In the last scene where Aibileen gets fired, her second button is undone when she walks into the living room. When she bends down it is buttoned, when she stands up it is unbuttoned, then in the next shot it is buttoned again.
Continuity mistake: When Skeeter is getting in the truck to go on her date, her hair is already messed up, like it is when she gets to Hilly's home. (01:21:00)