3. The Joker Never Leaves the Party, The Dark Knight
The Joker storms Bruce Wayne’s swanky penthouse party in search of Harvey Dent. Instead he comes across Rachel Dawes, also Harvey’s love interest, before being attacked by Batman. Batman quickly disposes of The Joker’s goons in response to which The Joker pushes Rachel out the window – “Let her go!” “Very poor choice of words.” Batman dives after Rachel and saves her, despite pancaking himself on a parked car after a fall of more than a dozen stories.
What’s in question, however, is not how Batman avoided breaking his back (before Bane did it for him), but the fact that we never see him return to the party. The Joker’s still up there terrorizing Bruce Wayne’s guest. What about Harvey Dent, whom Bruce Wayne incapacitated and stowed in a safe room, or that old guy The Joker was tormenting? Are we supposed to believe that The Joker just got bored and wandered off? As the previous plot hole illustrates, he’s a man with a plan. It just might’ve been nice to know how this part of it was supposed to end, apart from defenestration.