Near the end, Cliff bumps the toy robot on the table, starting it walking toward the camera, and he walks back to the shop window. The camera starts tracking forward, and as the toy robot is walking forward out of the shot, bottom left, the shadow of the camera falls across the toy.
Towards the end, when Cliff chases after Norma in the rain, a scaffold with spotlights is reflected in the side window of a passing car.
Near the end, Vinnie is telling his girlfriend that he was wrong "about Norma and Cliff" in these exact words. But Cliff is his father; he wouldn't refer to his father by his first name.
Towards the end, when Norma flies back to NY, the plane is flying to the right. As Cliff watches this, his eyes are looking to the left.