The movie is supposed to take place in Philadelphia, Pennsylvania. However, in the scenes surrounding the playground where the boys practice, the CN Tower and Sky Dome, both located in Toronto, Ontario, Canada, can be seen.
When the team members are comparing PSAT scores, they list numbers in the thousands (1540, 1600, etc.), however PSAT scores range from 60-240. The SAT is measured in the thousands.
Rabbi Lewis: When Judah was asked by his companions, "How can we, few as we are, fight back against so great of a multitude?" Judah replied, "It's not the size of our army, it is the strength of our faith."