Continuity mistake: Early in the movie when Odin is being awarded the MVP everyone is cheering. We see a view from behind "O" and he is jumping around, the next shot is in front and he's calm and composed.
Continuity mistake: The night that the plan with the killings take place Hugo serves Mikey some drinks. Hugo has two small glasses out and is pouring a drink into one class and he pours the all of the drink into one cup making it halfway full. Yet, when he picks his glass up its one quarter way full and Mikey's glass has liquid in it, but Hugo never poured any in Mikeys glass.