I'm kind of curious what level of knowledge most people went in with when they saw the movie. Obviously, it's based on a book, so there are plenty of people who went in knowing the whole plot. But I managed to see Room without knowing anything about the midpoint story shift, and I didn't really make much of an effort to avoid learning anything about the film before going in. I had no idea that half the movie would take place after Joy and Jack escaped - hell, I didn't even know Joan Allen and William H. Macy were going to be in the movie. I'd just assumed that the film's marketing team did a good job of hiding these developments, since I usually absorb movie buzz like a sponge, but I've heard others (specifically several Doug Loves Movies guests) complain that some trailers and ads give too much of the plot away. Did I just get lucky?