Continuity mistake: During the scene when Michael is attempting to deceive Brennen into letting him and Nate go (from the time Brennen receives the picture message to when Brennen leaves), Brennen's necktie (right below the knot) changes from having a dimple to being flat, 6 or 7 times during the scene.
Continuity mistake: Michael is having a meeting with the guy who is asking how Michael found out about him (where Sam is standing guard with the sniper rifle.) Michael has a gun pulled on him and is trying to escape. As Michael is trying to leave in the Charger, he pulls backwards and makes a 90 degree turn so that the passenger side of the Charger is facing the guy with the gun. The windshield could not have been shot from this angle. The next camera shot Michael is driving backwards again with the windshield facing the guy so he can shoot a hole in the center of Michael's windshield.
Continuity mistake: Michael has to prove himself for his new "boss" Concha Ramirez. He walks across the street to Fiona and starts a mock robbery to get her purse. When he approaches the car, the window is down. Three seconds later he is at the car and the window is up so Michael can break it. Watch as the window frame goes from clean (as if the window were down) to broken pieces of glass on the frame between shots.
Continuity mistake: When Michael has his gun on the dirty cops head, the gun is resting on his forehead and Michaels hand is on his throat. In the next shot the gun is right between the cops eyes, and his hand is on his chest. This keeps going back and forth a few times.
Continuity mistake: When the heroin importer is questioning Sam, he has his hand around his face, with his fingers touching his ear. When the shot moves to the front, his hand is more on his throat and nowhere near his ear. When we cut to the back, his hand moves again.
Continuity mistake: Xavier's henchmen show up at Oswald's associate's house with 2 Escalade SUV's. Then one more Escalade, same year as the 2 others, shows up behind the house. As soon as Michael says "One more coming up. Third", the next shot of the Escalade shows a much older model.
Continuity mistake: Michael attempts to have a conversation with his mother Maddie while she is folding clothes. She picks up a blue Hawaiian shirt and begins to fold it. The angle switches for a moment to Michael and then immediately back to Maddie, only now she is folding a white shirt. The blue shirt is already folded on the table and is seen under another shirt.
Continuity mistake: When Michael is on the phone with the heroin dealer at the docks, he has his phone at his left ear. When the camera moves to a shot from the back, there's no phone near his face (or in the frame for that matter) and his mouth doesn't move while talking. When the shot cuts back, the phone instantly is back at his ear.
Continuity mistake: This basically happens in nearly every episode. Whenever Michael's mom is smoking, which she does a lot, her cigarette and smoke change size and position with every shot. Although it's hard to keep a cigarette burning the same way with each take, it seems as if no attempt was made at all.