6. The Crying Game (1992)
If the Adam's apple didn't give it away, we're sure the statute of limitations on keeping mum on this film's "twist" has certainly expired: femme fatale Dil (Jaye Davidson) is actually a dude. We all know how that little nugget (no pun intended) of info is usually discoveredâ€”and that's exactly how IRA member Fergus (Stephen Rea) realizes the woman he's lusting after is actually no woman at all. Woops.