More than 450 snakes were used for filming to represent 30 different species of snakes. The different species include a Burmese python named Kitty (which the crew called Kong for film purposes), scarlet kingsnake (the non-venomous double for the eastern coral snake), milk snake, corn snakes, rattlesnakes, and mangrove snakes. The scarlet kingsnake and milk snake stood in for coral snakes, while a Florida kingsnake filled the role of the venomous Australian taipan (which attacks the couple having sex). About two-thirds of the snakes seen throughout the film were either animatronic or CGI. The snakes that were real were mostly the non-venomous ones that are never seen attacking anyone. The scenes where someone is clearly bitten were often done with animation. According to the DVD, all the snakes had production names, but only Scarface (an animated pit viper), Peanut (a cobra), and Kong are mentioned by name in the audio commentary. During filming, Samuel Jackson did not come into contact with any live snakes, due to a contract clause preventing snakes from being within (25 ft) of the actor. When the film was released in theaters, "pranksters" released two live western diamondback rattlesnakes at a showing of the film on August 22, 2006, in Phoenix, Arizona. One snake had made its way into the lobby of the theater on its own, and another had been found in the parking lot. No one was harmed and the snakes were released back into the desert.