Audio problem: When Gemma is talking to Clay in jail there's a shot "en profil" in which we only see the silhouette of her face. When Clay sits down you can see she's saying something, while the only sound we hear is Clay exhaling.
Visible crew/equipment: When Jax and Clay are meeting with Alvarez (when they figure out the niners are branching out), the camera man is visible in Alvarez's sunglasses.
More trivia for Sons of Anarchy
Question: Does anyone know why Piney wears a jean vest instead of leather like the others?
Chosen answer: The First 9 wore these, as can be seen on old pictures. They later switched to leather, but Piney just never did.
Friso94