Continuity mistake: When the police show up at Michael Kosco's place, Deputy K. Reddy wanders off to check the window. There's a brief cut to a wider angle, then Jon Hamm is hunched over again like in the first shot, even though he has already changed position. (01:21:40)
Continuity mistake: After the Nazi suicide, Jon Hamm and Nick Mohammed are having drinks together. The bottle of beer disappears and reappears in different positions between shot and reverse shots. (01:07:40)