Factual error: He's playing Gabriel in scrabble and puts down the word sphinx. Gabriel replies "59 - impressive" but this is not possible with the word sphinx. The letters add up to 18, so on a triple word score without any other bonuses it would be 54. The only other multiplier in range is a double letter square - with a single-point letter (the S, I or N) on a double letter score it would be 57. The next highest-scoring letter is P, worth 3 - with that on a double letter the total would be 72. No way to score anything in between.
Factual error: When they are playing hockey in the driveway, the FBI agent says he lived in the city in St. Louis. He then says they had street names like 1st street, 2nd street, Washington, Lincoln. First and Second street exist, but they are both in industrial areas and no-one ever talks about them. More to the point, there is no Lincoln Street in St. Louis at all. (00:27:00 - 00:28:00)