This is an interesting Reddit thread about little known facts in movies that may change the way you perceive a film.

Some of my favorites so far:

  • There is no music at all in No Country For Old Men until the credits.
  • The entire plot of Shaun of the Dead is revealed at the beginning of the movie.
  • The little boy in The Shining filmed the whole movie without ever knowing he was part of a horror movie set.
  • Grease is about changing your morals in order to find true love. Haha, so messed up.
  • In Elysium, he gets the mechsuit bolted over his T-shirt. This is so ridiculous that I had to rewatch it just to see.

Plenty more here.