Deliberate mistake: In the film, American aircraft carriers carry no fighter planes. It was a weird choice...pilots who were naval fighter pilots were edited out of the story, and Wade McClusky, who in reality was previously a fighter pilot but moved into dive bombers had his story changed for the film to have him previously had been a torpedo plane pilot instead.
Suggested correction: Nowhere does it imply he was a torpedo plane pilot.
Deliberate mistake: In the lab where Jessie is working, the canister that Walter had put his bloody hand on when he dies at the end of Breaking Bad still has the bloody handprint on it from that episode. However, this part of the film takes place before that episode happens. In the behind the scenes, the director stated he didn't have the heart to remove the handprint and decided to leave it in as a little "Easter Egg"
Deliberate mistake: After dropping Rick off at the set, we see Cliff driving his car back to the house to fix the antenna. View forward from inside the car, the rearview mirror is obviously missing. The next scene, outside with the car coming toward you, the rearview mirror magically reappears.