Special features included only the original theatrical trailer and a special behind-the-scenes featurette. The NC-17 version was re-released on VHS the same day as part of the MGM Movie Time collection. In 2004, MGM released the "V.I.P. Edition" on DVD in a special boxed set containing two shot glasses, movie cards with drinking games on the back, a deck of playing cards, and a nude poster of Berkley with a pair of suction-cup pasties so viewers can play "pin the pasties on the showgirl". The DVD itself includes several bonus features, including a "how-to" tutorial for giving a lap-dance hosted by real strippers, and a special optional "trivia track" feature. When on, it adds humorous comments and factoids in the vein of VH1's "Pop Up Video" that relate to the scenes as they play out. It also includes "The Greatest Movie Ever Made: a commentary by David Schmader". In 2007, MGM re-released the V.I.P. Edition DVD without the physical extras. On June 15, 2010, MGM released a 15th Anniversary "Sinsational Edition" in a two-disc dual-format Blu-ray/DVD edition. This edition contains most of the same bonus features as the V.I.P. Edition DVD, except the trivia text feature has been reformatted. The NC-17 edit of the film is used. The trivia track on the 2010 edition contains some errors, such as a statement that some of the dancers featured in the film were recruited from the XFL football league cheerleaders, an impossibility as the XFL was not formed until 2001. The film is classified R18+ in New Zealand and Australia for its violence, offensive language, and sex scenes; the Blu-ray lacks any special features despite featuring the same cover as the American "Sinsational Edition", while the DVD comes with a single theatrical trailer. In 2011, actress Rena Riffel wrote, directed, produced, and starred in an unofficial sequel/parody of the film. Titled "", Riffel reprises her role of naive newcomer Penny. The film essentially follows the plot of the original. In 2013, an off-off-Broadway parody called "Showgirls! The Musical" was mounted by Bob and Tobly McSmith of Medium Face Productions. Originating at The Krane Theater in New York City, the critical and audience response was overwhelmingly positive.