I think about how every time a religion gets introduced, it always turns out to be evil or misguided.

If its a story about an advanced civilization meeting a more tribal culture, the advanced society is always irredeemably evil but ironically it requires a sympathetic member of said advanced culture to lead the natives to victory despite history pretty much showing that's never the case.

If a story sets it up that someone is going to die by the end very early, and they are aware of it, you can bet the story will either find a way for the character to survive, either by some Deus Ex Machina (Secret of NIHM, BoFV, FFXIII) or some other character (usually the dying characters love interest) sacrificing themselves for the other to live (FFX, MGS4, Titanic).

Most love stories, even worse when the film has a sequel and the love interests have "broken up" just so the writers can force in the same love story from the original, I'm looking at you National Treasure.

Any family film, comedy, and most chick flicks will always have a happy ending. So no matter how messed up things become, you are always relieved with the knowledge its all going to get resolved for the better in the last ten minutes.