Continuity mistake: When Gary is at the end of the table talking about Golf, he's actually seated in front of the table as seen by how he grabs his cup in front of him. In the very next shot, he's no longer sitting in front of the table and is sitting past it.
Continuity mistake: When we first see the living room, there are three half-gallon jugs of milk on the coffee table. In the next shot, two of them have disappeared.
Continuity mistake: When the team is on the rooftop examining the bullet path of the sniper, there is a man on an adjacent rooftop taking photos. The pictures on the camera are slightly different than the people he's shooting such as the position of the people and a brown sign seen in the first two pictures above the blue door behind them.
Continuity mistake: When Rachel is examining the shell casing of the .30 calibre bullet, when we first pan over to her sitting in her office and on her desk is a Newtonian Collision Balls swinging back and forth. When the camera shot changes to a closer shot, its stationary and no longer moving.
