Continuity mistake: When Prof. Rosa calls Cole, Terry answers the phone and places Rosa on hold. However, when Cole takes the phone from Terry, he does not take Rosa off of hold and proceeds to talk to him.
21 (2008)
Trailers
Directed by: Robert Luketic
Starring: Kevin Spacey, Kate Bosworth, Jim Sturgess, Aaron Yoo
More trailers
More mistakes in 21
Kianna: Everybody knows to split eights. My grandmother splits eights.
More trivia for 21
Question: If the 21 game is still played in casinos, there could be hundreds of geniuses who can count and cheat the system as shown in the film. Is this a possibility, or have casinos adopted extra security measures or something?
Answer: Yes, most casinos have now upgraded to the automated card shufflers, which constantly shuffle the cards after each deal, so there is no way that counting cards would be possible.
Join the mailing list
Separate from membership, this is to get updates about mistakes in recent releases. Addresses are not passed on to any third party, and are used solely for direct communication from this site. You can unsubscribe at any time.
Check out the mistake & trivia books, on Kindle and in paperback.
Answer: Casinos have always looked out for people counting cards, even before the real events that inspired this movie.
pross79