At the start of the film, a dog has been run over by a car. To put it out of its misery, Ivy kills it. As she does, blood splashes on Sylvie's face. However, in the next shot, the blood is nowhere to be seen.
Sylvie's injury is directly above her right eye, but by the time she gets home from the hospital, the bloody bandage has shifted further to the right.
A few scenes before the car accident, Ivy's injury is visible, but very light on her chest. Once the car accident occurs, the injury is in the same place, but much darker.
(at around 1 min) During the party, Ivy has served Darryl Cooper a glass of champagne. He raises it to his mouth with his left hand to take a sip. The camera then changes to his point of view. Having taken the sip, he gestures to Ivy with the champagne glass in his right hand.
When Ivy and Sylvie are trying to win over the dog, Ivy's coat changes position many times between shots.
The magnetic key holder is located on the fiberglass part of the Corvette and would not stick there.
When Sylvie breaks the espresso machine, spilling coffee grounds on the floor, the maid, Iris, uses the vacuum to clean it up. A vacuum cleaner sound effect is heard and the camera focuses on the machine but the vacuum cleaner is clearly not turned on because the vacuum bag does not inflate.