Continuity mistake: When Strabo is pointing his gun at Oz and Oz hits it with his flowers, a shot goes off. Then it shows a lamp being hit. A split second later the vase beside it also breaks. There shouldn't be a split second between the two items breaking. A gunshot at that range would make both the lamp and the vase break at the same time. (00:21:35)Mortug
Continuity mistake: When Jill and Jimmy are arguing at the motel, Oz tells Strabo that Jimmy killed 21 people. Later at the bar when Jimmy is very drunk, he tells Oz that he has killed 21 people. Oz corrects him and says, "22 people", and Jimmy says, "Who'd I forget". Oz replies with "Frankie Figgs". Apparently Oz had forgotten that information as well when he was bragging to Strabo earlier. (Also, why would Oz know who Jimmy had forgotten?).
Continuity mistake: When Strabo is tied to the chair and falls down the stairs, the chair remains whole at the top of the stairs. Later when Oz looks down the stairs the chair is at the bottom and is totally broken, and even if it fell down by itself it wouldn't have been smashed to pieces like that. (01:01:20 - 01:02:50)Mortug
Continuity mistake: When Oz, Jill and Jimmy run through the door hidden behind a closet, as it cuts from inside you can see them turning right immediately as they get in the door. You can also see a banister by the entrance. When it cuts to outside you see them running straight ahead. This means that they in fact are running through the banister, however the banister is now gone. (00:31:50)Mortug