In The Dark Knight, Batman duels with the Joker through battles all across Gotham City. These fights climax when Batman discovers that the Joker is his actual father who killed Wayne Sr. out of jealousy for his wife.
The big twist to M. Night Shyamalan's The Happening is it's plants. They're tired of man destroying the environment, so they've released a toxin which makes people kill themselves. They dont want to kill everyone, just enough to save themselves and get humanity down to a manageable level.
indiana jones ends in the crystal skull making a space ship take off & shai le boufe is indiana jones's son