Factual error: The "Mafia" characters are shown being on the Titanic (the life preserver behind the coffin during the funeral reads R.M.S. Titanic in its trademark red and white logos, with the white star company printed on its side) but the other fish in the movie are warm-water fish that live on a reef. The Titanic sank in the north Atlantic, how is there a warm-water reef nearby?
Continuity mistake: After Oscar thanks Angie for clocking him in, he reveals he brought her a bag of food. He did not arrive with it, and when the camera changes to show the front of the desk where he later pops up with the bag, the bag of food is nowhere in sight. He pulled the bag from thin air. Well thin water. (00:08:20)Quantom X