Continuity mistake: When Spencer beats Detective Furey at ping pong, he throws his paddle down on the table in frustration. The paddle then immediately moves to a different position in the next shot.
Continuity mistake: The position of the Bluetooth sniffer changes in Emily's hands 2 shots after Aria passes it to her in the car.
Continuity mistake: Sydney's coffee changes position 3 times after Emily sits down to talk to her before picking it up to leave. Note the creases on the cardboard of the cup.
Continuity mistake: When Fury and Spencer are playing ping pong there is one scene where Fury is holding the ball and Spencer is empty handed, then as the scene progresses Spencer is also holding a ball.
