21 (2008)

Continuity mistake: During the scene in which Ben is introduced to the card-counting group, several members are sitting at a blackjack table. There are cards on the table in front of them. In the first shot, the cards are face up, in the next, they are face down, then they appear face up again. While no one is seen or heard dealing cards, the number of cards on the table changes in several shots.

Kianna: Everybody knows to split eights. My grandmother splits eights.

Trivia: When Cole is beating up Ben for counting cards, before it changes to the next scene, you can see Cole's arm stop for a brief second, which gives away that there is more to that scene.

Question: What was the club they went to in the middle of the movie? Not the strip club, it was a dance club. The entry was a long hallway with red lights inside, then it opened up to the big dance area. Does anyone know? Thx.