Jake takes his tie off just before his fight with Lupus. Subsequently, the tie is alternately on/off between shots.
The blood spatter on Jake's shirt changes in the opening scene.
When Jake meets the King, Lupus is seen sitting at the bar. King calls him over to the table, and he gets up, when the scene cuts back to Jake, Lupus is sitting at the bar again.
The position of Katie and Ally (booth dancing sisters) when they first meet The King.
The position of Jake Vig and Lily during their second meeting (closeup) outside the club.
$5m in $100 bills weighs approximately 100lbs. It would not have been so easily maneuvered by Gordo.
At time stamp 0:09:19, in the scene when the crew finds Big Al dead in his recliner, you can see, what is supposed to be a very dead Big Al, blink his eyes.
When Travis racks the slide on his pistol while threatening Jake, the slide remains locked back, indicating that the gun is empty.
During the credits sequence, when the narrator says "that's why we give you the fix," what he means is "the blow-off." The "fix" refers to bought cops, whereas the "blow-off" is the way the mark is convinced not to come back.
When the group is walking after meeting with Ashby, Miles and Gordo talk about packing and going to Belize, but it has not been decided that Gordo was going to go to Belize, Jake was supposed to be going.