When Harold interprets ballet dancing, Louis' expressions change between camera cuts.
In the meeting with the judge between Harvey, Mike and the lawyer on the other side, Tom says that Harvey came to them the next morning with a settlement; however, it was still dark when they had the conversation and not morning.
When arriving at the casino in Atlantic City, MIke says he can't go in because he was banned for counting cards. New Jersey is one of two states where players can't be banned for counting cards ( Uston v. Resorts International Hotel, Inc., 89 N.J. 163 (1982))