When Hank initially opens the fruit tray and grabs food during the beginning of Walter's intervention, Walter Junior is smiling and trying to cover it with his hands.
When Jesse and Badger are getting high in the alley in the beginning of the episode, the position of Badger's visor keeps changing on his wing between shots.
When Walter and Skyler enter the party, Walter's jacket is buttoned correctly, left lapel over right. When the server arrives to take the gift Walter brought, his jacket is buttoned right over left. In the very next shot it has reversed again.
During the "talking pillow" scene, the afghan on the couch behind Walt Jr and Marie changes position several times while Marie is talking.
The black Fender Stratocaster given to Elliot by a friend at his party is a Fender Stratocaster Mexican version. Eric Clapton only played Fender Stratocaster American. When he picks up the guitar, the headstock is from a Mexican made Stratocaster (subtle differences, i.e., the missing Fender logo up the very top).
For the last 3 episodes: the closed-captioning and the audio do not match.