Nick (to test if he was alive) takes a shotgun from the rack, steps out of view and discharges the weapon. The mistake is that the shotgun he took from the rack was a double barrel shotgun but you hear the sound of him "racking a round" as if it was a pump shotgun just before pulling the trigger.
When Nick is yelling at Annie he is pointing with his left hand from the front shots. Then you see a shot from Nick's perspective of Annie and he is pointing with his right hand.
When Nick was walking home from the party, he kicked over a big trash can and a trash bag. The big trash can landed in the middle of the street and rested on one of its handles. The very next close up shot of Nick, you can clearly see in the background that the trash bag and trash can are back on the curb.
The character of Nick has planned to study writing at 'The Royal Academy' in London. The Royal Academy is/are a group of distinguished painters/artists. The Royal Academy is also a building which hosts art exhibitions. Not a place of study for writers.
The car hot wired outside the jewlery store is a Mercedes Benz with an ignition system that cannot be started in any way at all without the electronic key. This system is called DAS, Drive Authorization System. There is no way they could have started that car without the key to 'authorize' the starting of the vehicle.
When Annie shoots Marcus her gun locks open due to it being her last bullet. Hard to believe anyone takes their gun to a gun battle with only one bullet in it other then Barney Fife.
When you see Pete looking at the ticket, you can see that the band-aid is on his right thumb, even though he was cut on his left thumb.
When Annie shoots Marcus her gun locks open due to it being her last bullet. Hard to believe anyone takes their gun to a gun battle with only one bullet in it other then Barney Fife.
When the police are rushing to the dam, Detective Larsen asks Detective Tunney how long until the dam opens. She says 15 minutes. Yet, she waits until they are standing on the dam to use her cell phone to call to have the water shut off.
When Annie is pushing back the sewer lid to find Nick's body, the "spirit" Nick is the one who ends up pushing the sewer lid the rest of the way open, even though he doesn't physically exist.