Near the end of the film as the agents run down the stairs into Grand Central Station, Oakes shoves aside a man with an orange t-shirt, backpack, jeans and a wallet chain on his right hip. One minute later as they run down the train platform, the other agent shoves aside a man wearing a jacket and baseball cap over his orange t-shirt, jeans and wallet chain - the same guy.
During the standoff in the lost luggage room Jake pretends to shoot Oakes and the slide on his gun clearly locks open, indicating that it is now empty. This is glaringly obvious, since the whole thing is shown in slow motion. Nonetheless Jake then goes on to fire two more shots from the same gun.
When on the rooftop they are chasing the attacker referred to as "Elvis" in the main shots his shoes are buckle boots but in the close-up scene of him turning around his boots are clearly laced then the main shot again has them as buckled boots before he jumps.
When hanging in the laundry chute, Jake lifts his right hand and moves it while talking on the cell phone which he holds in his left hand. His feet are dangling down the chute - how is he supported while he moves his right hand?
When Jake finds Nicole in the shower. You can just see from the front she is already wearing something dark colored to cover her. Then from the back when she reaches for a towel, she is already wearing a white one.