Factual error: Julia takes a Blade helicopter charter to Mohegan Sun to place Howard's bet on the 2012 NBA finals. The Blade charter service wasn't established until May of 2014.
Factual error: The 2012 NBA conference semifinals took place between May 12th and May 26th of that year. Passover in 2012 began on April 6th and ended on April 14th. A Seder would not have taken place during the semis of that year.
Factual error: Mohegan Sun casino is in the state of Connecticut. Connecticut does not have legalized sports betting and did not have it in 2012, when the film is set, therefore Julia would not have been able to place Howard's bet.