Gina Gershon Didn't Like Scripts She Was Receiving, so She Wrote Her Own One-Woman Show

“We can’t do a whole interview about Showgirls,” Gina Gershon exhaled, not five minutes into our conversation at Odeon in Tribeca on May 21. I didn’t mean to exasperate her so soon—I couldn’t help it. The woman who played Cristal Connors in Paul Verhoeven’s cult classic of Vegas excess and g-strings—a movie I have…