Brad Pitt is a clone or something.

The first time I watched it, I already knew the plot twist so I was looking for the clues.

I had no idea that there even WAS a plot twist, so I was caught totally off guard. Usually, if I know that there is some twist, I'm looking for one and can usually figure it out. I remember when The Sixth Sense came out. Everybody was talking about the "big shocking twist." I hypothesized before even seeing it. After the opening scene, I thought to myself "yup, I was right."

First saw the movie years ago. Couldn't remember everything. Rewatching it, with knowledge of the schizophrenic part, was really worth it!