Well, obviously, she was in Striptease, but IMDB also shows her as being in something called "Guns" (aka "Do or Die"), with Erik Estrada. Don't know if it would strictly be called mainstream, tho'.
But here's a something that IMDB inadvertently barfed up, you know that PP is supposed to have said that she admired Elizabeth Montgomery, and to have done those awfully pretty "harem girl" costume photos as a tribute? And you know how some episodes of "Bewitched", feature a character called Serena, who is basically a "bad" raven-haired version of Samanatha (a cousin or something)? And you know how those episodes credit the actress playing Serena as someone other than EM, although its almost certainly EM playing both parts (unless she had a twin sister)? I checked the end credits on one of those episodes to be sure, and remembered the name because it looked like a pretty obvious alias (good joke though, hope EM got paid twice!)
Well, although I'd seen the name on the credits before, and remembered it, I'd never made this connection: Elizabeth Montgomery's alter ego was called Pandora Spocks.