I saw Inception today. It was very good...not one of my favorite movies of all time, but it's certainly very good and solidly in the running for best movie of the year.
Great movie, best seen in IMAX, IMHO. The film, a fast moving high action brain-twister, is sort of mash-up of The Matrix and Ocean's Eleven.
See, I found nothing brain-twister-y about Inception. The movie over explained itself. That and gave away the ending in the first 2 minutes of the film.
Yeah, you could see basically how it ended from about the moment you see the young japanese guy. However, the story of how he got there is very interesting, not to mention the thoughts on consciousness, dreams, etc. I'd agree with you, though, that it wasn't necessarily a brain twister. It did, however, provoke a lot of thought outside the things going on directly in the movie.