In-game name: Clem Williamson Snide
World: Noarsil
Answer (#3): Young Frankenstein
OK, this one was impossible. The three movie clues I could find were The Princess Bride, Wild Wild West, and Revenge Of The Nerds. All sausage fests, and no overlapping actresses, even among the minor cast. Now, the weight of the answers seems to indicate Meg Ryan, but I dunno... the connections are tenuous at best.
So, I'm simply going to name my favorite movie of all time. Go watch it now.