During filming, the introduction of Wendy the prostitute was briefly interrupted when a non-actor attempted to pick up actress Julia Minesci, mistaking her for an actual prostitute.
This features a slightly different title sequence with the Br and Ba detached rather than connected.
Crazy-8 is wearing yellow which signifies ambivalent morality and is used throughout the series so far when the main characters behave morally ambivalent.
This is the first episode with Gretchen, a very important person to Walter and arguably a nexus in terms of what happens later.