Continuity mistake: When Gus walks towards the nursing home towards the end of the episode, two flags in the background stop waving, but in the next shot they suddenly wave again.
Visible crew/equipment: When Combo is watching a black car parked in front of him while he was dealing as the episode started (a few moments before he's killed), a stage light can be seen reflected in his sunglasses.
Negro Y Azul - S2-E7
Continuity mistake: At the start, the writing on the blackboard changes style. Note the "CH3". (00:04:30)
Continuity mistake: When Walt breaks the news that Gray Matter is broke, Skyler's hands are on her stomach, we then see her hands are by her mouth. (00:38:50)
Continuity mistake: When Walt walks into the house at the start we can see the kitchen has a window and it's bright sunshine coming through. However, a few minutes later we see the kitchen behind Walt and it's in complete darkness despite the previously mentioned window. (00:04:50)
Continuity mistake: When Jr. is walking out of Hollie's room with the freshly printed posters, the box is on the floor with the flap open by the leg of the table. When we see Jr. leaving from the box's POV, the box has rotated and the table leg can no longer be seen by the flap of the box. (00:14:20)
Continuity mistake: At the end of the last episode it's mentioned by Gonzo how heavy the meth is. However, in the same scene in this episode, it's omitted. (00:02:50)
A No-Rough-Stuff Type Deal - S1-E7
Continuity mistake: When Walt and Skyler are talking on the sofa, Walt's hand goes from Skyler's leg to her hands instantly. (00:40:20)
...and the Bag's in the River - S1-E3
Continuity mistake: The position of Walt's right foot changes when he collapses. When he first collapses his foot is pointing toes away from his left foot. We then see Krazy8 stand up and now Walt's right foot is pointing toes towards his left foot. (00:23:10)
Chosen answer: It is part of the ritual for la Santa Muerte. It is a sign of humility and sacrifice.
djm