When Bob is being helped into the police car while being arrested, a voice says, "Watch your head, sir," However, Bob is already in the car and a policeman is getting into the car when the line is spoken.
In the opening scenes, when Roseanne is trying on the gold and black mini dress, she turns 3/4 to the camera and we hear the dress's zip and she looks satisfied at finally getting it to zip up. But in the mirror on the left, you can see that the dress is still half-unzipped and her bra is still showing as much as before.
Ruth's dress changes from the time she leaves the house prior to the explosion to the time the house explodes and once again back to the former dress when she escorts Andy and Nicolette away from the rubble.
When Bob is taking a shower and sees Ruth through the shower door, he screams. He steps out of the shower, and Ruth tells him that she is in there to weigh herself. Bob walks out of the bathroom, and Ruth steps on the scales. The scales are not visible, but you hear the scales moving as if it is a rotating dial scale. However, when the camera shows the scale to reveal to the audience what she weighs, it is a digital scale.