Bad arguments on "No reason," premise of the film:
Lieutenant Chad: In the Steven Spielberg movie "E.T.", why's the alien brown? No reason. In "Love Story", why did the two characters fall madly in love with each other? No reason. In Oliver Stone's "JFK", Why's the President suddenly assassinated by some stranger? No reason. In the excellent "Chainsaw Massacre" by Tobe Hooper, why don't we ever see the characters go to the bathroom... or wash their hands, like people doing in real life? Absolutely no reason. Worse, in "The Pianist" by Polanski, how come this guy has to hide and live like a bomb... when he plays the piano so well? Once again the answer is "no reason".