(Seriously, spoilers. I'm going to give away the whole movie in three seconds.)
I've been dying to actually discuss it
Did anyone else think that had they just left out or toned down the part about Rachel "creating a whole imaginary world around her because she can't accept the reality of what has happened and what she has done blah blah" it wouldn't have been so obvious? I kind of went into it thinking he was going to end up being a mental patient all along because I had heard there was some big "twist" and that's just the natural conclusion, I think. But lord, they didn't have to SPELL IT OUT on two separate occasions. I went "that's what he's doing" as soon as they said that.
What did everyone else think about the specifics of the movie? Did you get it? Figure parts out? Go wtf the whole time?

"Whatever East. You're just mad I RSVP'd "lame" to your pre-wedding sleepover."