Revealing: When Tony stops the robbery at the grocery store, he punches the guy holding the gun. You can see that his fist does not connect on this punch, but the robber reacts as though he had been hit.
Revealing: The camera films Tony's P.O.V as he enters the sports club to kill Peter and Susie. As the camera nears some door, it goes out of focus, and then the picture refocuses.
Continuity: When Peter talks to the janitor while playing tennis, the way the janitor holds his broom differs between shots.
Continuity: After tennis, Susie walks to Peter and her hair is parted on the left and combed over to the right side. When she gets to the net her hair is now messed up and hanging in front of her face.