At the end, the MPAA certificate number is listed as 54,636 which is assumed a typo. At the time it should have been about 34,000.
When Kazaam is singing the song "We genie" with Max, if you look closely, when he raps the part, "...and we was in Hades 'cause we moved with the Harem of the Prince of Akabrem..." His mouth is still moving for that split second after he finishes the line, but before they show Max's Face.
Even though the movie is based in Brooklyn, while Max is talking with his dad in the car, you see a bus with Red and Orange stripes roll by. Buses in New York have blue stripes. Red and Orange were the colors of the Metro buses in Los Angeles in the early to mid-1990s.
There is an inconsistency around the age of Kazaam, with his origin song suggesting he became a genie in 1000 BC, making him about 3000 years old. But he says numerous times in the end he is 5000 years old.