Continuity mistake: When he is in the aquarium tank (just after he says "I've got to, mister!"), he leans down with his glasses in his left hand. He's supporting his weight on his hands so can't move them, but in the next shot from behind his left hand's flat on the ground with no glasses in sight. (00:16:10)
Continuity mistake: When Ace enters the bathroom at Camp's mansion, a towel falls to the floor from the door. However, when he exits the bathroom soaking wet, there is a closeup of his shoes and the floor and the towel is gone.
Continuity mistake: When Ace looks through Finkle's stuff he holds up two knitted coasters. They change hands between the two shots.
Continuity mistake: In the scene where Ace is trying to figure out the Finkle/Einhorn connection there is, what looks like, an air horn on the far end of the table to the right of the dog. A shot or two later when it shows the dog's hair around the picture of Finkle you can see the end of the horn laying right next to the dog on his left side.(This is visible in the screen shot already on the site that shows the dogs hair position changing.).
Continuity mistake: When Ace is dressed as a HDS delivery man, he starts playing soccer with the package he is carrying. After that you can see that the box is open at the top. When he is at the door, you can see that someone has put new tape on it to close it again.
Continuity mistake: At the end, when Ace embraces Melissa, the position of his arms changes.
Continuity mistake: When Ace empties the filter from the water tank, he blows dirt off his hand to get a better view of the precious stone. He does not, however, remove all of the grime off his palm. In the close-up shot of his hand to visualise the stone, his hand is clean.
Continuity mistake: Melissa says 'Why did it have to happen now, two weeks before the Superbowl?' She later says to Ace that it is Superbowl Week, and that someone stole Snowflake last night.
Continuity mistake: When Ace rummages around in the filter, his hand gets dirty as he grabs hold of some stuff. When he blows the muck away, and is left with just the gem, it is completely spotless.
Continuity mistake: When the people take the dolphin and put it in the truck near the beginning, they close the truck door and the door is red. When it shows the truck driving away, the door is white. (00:07:15)
Continuity mistake: After Ace tells Lois Einhorn about Ray Finkle and she steps out of the bath room to sit behind her desk. Pay attention to the filing cabinet to her left. The folders go from organized up right to being on their side.
Continuity mistake: Ace gets the call about Einhorn's date around maybe 10 or 11pm. When he's in his bathroom there's a window with the light coming through like it's morning or early afternoon.
Suggested correction: He's in the bathroom after a whole night of thoughts about connection of Einhorn and Finkle. The movie makes it very clear that he spent many hours trying to solve the case, of course it was morning already when he figured it out.
Continuity mistake: When Einhorn is tossed into Snowflake's crudely constructed holding pen at the docks, the dolphin seems to have disappeared.
Suggested correction: When she falls in the water, the dolphin is visible right near her in plain view.
Continuity mistake: When the man is sitting by a chess board and Ace is talking, as the camera direction moves between characters the chess pieces on the board suddenly disappear and don't return.
