Two obviously-different red Chrysler convertibles are used in the early sequence of David and Morris driving to Morris' ex-girlfriend's house. Close-up dialogue scenes filmed in the car show a large, conspicuous high-mount brake lamp on the car's trunk in the middle background, but exterior driving shots of the convertible show a different model, with no trunk light at all.
When Lisa is talking to her therapist the first time about whether or not to continue treating Rafi, at first her hair is behind her glasses. The next shot her hair is outside of her glasses, and the third shot her hair is behind her glasses again.
In an early scene outside and inside a cinema, which has two screens, the sign above the entrance shows that Screen 1 is showing one movie and Screen 2 is showing another movie. But in an interior scene, a sign shows that the movies are reversed.
As David and Morris speed away from Morris's ex-girlfriend's house while being chased by her brothers, a shot behind their car shows the traffic light ahead of them is red. Yet David nor Morris react to the red light, and the car maintains the same speed.
When David and Morris are going to throw the pie, the shot of the Verazzano Bridge is a different location than the background scenery when they are talking to each other. The bridge shot is from 3rd avenue on 100th street, while the background shots (when they're talking to each other and are shot from the front) are from elsewhere.