When Jesse goes to see Walt at the school, they sit in the car and discuss the meth. Walt holds the bag of meth which has a zipper type seal on the bag, the kind where you move the little plastic piece along the top to seal it. When the coverage flips to show more of Jesse's point of the view, the bag is now the color seal type plastic baggie. It switches back and forth throughout the scene.
When Mike Ehrmantraut show's up at Beneke to take Walter away from the scene, he gets out of his car, leaving his door open, but doesn't open the back passenger door. After he grabs Walter, the camera cuts back to his car showing the rear passenger door already open as if he opened it right after getting out.
The Triton brand ATM outside the Big Chief is not rated for outdoor use and would rapidly stop working. Any rain would destroy it. There's no place to mount an ATM camera in that ATM either. The video depicted wouldn't be the type or quality recorded, that capability would cost more than the entire ATM is worth.
Hank refers to Jesse's RV as being a "Class C" RV when in fact it is a Class A.
When Ehrmantraut goes to Walt's house to remove the bugs, he uses a paddle drill bit to drill a hole in the stucco wall. You would never use this type of bit to drill through stucco. You can see when he starts drilling that the wall flexes inward. It is an obvious prop and not really the side of house.
While Walt is driving and listening to the radio, the radio announcer identifies the radio station as "KECA 480 Albuquerque's News Radio". This is an impossible broadcast frequency in the United States because AM broadcasts are on frequencies between 530 and 1,700 kilohertz, and FM broadcasts are on frequencies between 88 and 108 MegaHertz.
When Schrader drives his Jeep towards the camera (at around 32 mins) one or two crew members standing in front of the car are reflected briefly in the chrome accents in the car's grille.