"Special Thanks to: Tabitha Stevens & Tawny Roberts" These porn actresses have a short cameo as dancers in the club.
The credits list an "Erdnase Grip" and a "Mechanic's Grip." S.W. Erdnase was the pseudonym of the author of the book "Expert at the Card Table," which was referenced in this movie. A "mechanic's grip" is a special way to hold the cards that facilitates many common sleights (including dealing seconds and dealing from the bottom of the deck).