Factual error: PJ is getting his hair cut by an attractive female barber. Attached to the outside of the window is a neon sign reading "BARBER SHOP," but the sign faces the inside of the building so it would be backwards to people outside.
Continuity mistake: When Amy puts Gabe on the spot by asking if she's "really smokin'" for a pregnant woman, Amy strikes a pose with her water bottle in her left hand, but in the closeup the bottle is suddenly in her right hand.