This year marks the 30th anniversary of Showgirls, Vanessa Berkley’s big-screen debut that has gone from unmitigated disaster to cult camp classic. Paul Verhoeven’s risqué provocation starred Berkley as Nomi Malone, a Vegas transplant with nothing in her pocket but dreams of dancing and a wild drive to achieve them. The NC-17 film was roundly panned upon release, mocked across late night and in the press, and bombed hard at the box office. Berkley, who had emerged years earlier as a teen TV star on Saved by the Bell, faced critics’ unrelenting wrath and was promptly dropped by her team...