Continuity mistake: When Hank is standing between the ATM and the pumps at the gas station, the shadow cast by the roof over the pumps shifts between shots. The shot from away, taken next to the pole with the Indian logo was taken earlier in the day, casting a long shadow. The other shots have a higher sun which has moved by several hours.
Continuity mistake: Walt is driving down a deserted road singing "A Horse with No Name." You can see the roadway behind him through the hole in the headrest. At first, the road is empty. But then a white vehicle quickly approaches. The camera angle changes and there are no vehicles behind him, but a police car coming from the opposite direction passes and makes a u-turn. When the camera angle is back inside Walt's car, the white vehicle turns out to be the police car that just made a u-turn.
Continuity mistake: When Walt asks for the RV to be destroyed, there is tape over the bullet holes on both the inside and the outside of the door. However, when Hank is showing the bullet holes to the owner of the lot, he takes the tape off the outside and the light shines on Walt. No-one has touched the tape on the inside.
00:28:50 - 00:36:00A Demon
Continuity mistake: While Walt is out of his car and arguing with the police officer, there are other cars visible in the far distance behind him. The cars appear and disappear in between shots, there isn't time for them to pass and we don't hear them pass.
Continuity mistake: When Walt is talking about his operation, in the hospital Cafeteria after Hank is shot. He says the line "Lying there waiting for them to anesthetize you." From one angle, he is shown looking forward, while from the next angle, he is turned around facing Marie.
Continuity mistake: Just after Hank crushes Leonel's legs by backing into him, Marco starts shooting into Hank's Jeep. You can see Hank crawling into the rear seat to escape through the side door. But as soon as the camera angle changes to inside the Jeep, Hank is back in the driver's seat and crawls out again.