Re: Most obvious plot "twists" (spoilers)
Psycho. It's still a phenomenal movie, but it's not hard to tell that "Mother" is a man in a dress and wig, even though you don't see Perkins' face.
However, I managed to avoid knowing Marion gets killed a little under an hour into the movie, so that twist was a pretty big surprise.
- "As chance would have it, I have won the Pulitzer Prize, and so I am qualified. Speaking in my official capacity as a Pulitzer Prize winner, Mr. Schneider, your movie sucks."--Roger Ebert