To be brutally honest I simply could not care. The film was an OK roller-coaster ride with two or three great SFX sequences, but was ultimately not very interesting, for the simple reason that the characters were poorly developed. I saw it once but had no problem following the plot. I suppose I've been trained at the PK Dick School of Phenomenology.
Not only that, the idea of dreams and the subconscious was ludicrous. I mean, if you had to create a perfect world to live in, would it really be a mega-new York complete with four thousand skyscrapers? How boring is that? And if you had a nightmare based on suppressed emotions and guilt would it really only amount to a woman who glares a lot?
Solaris (either version) did this way better. And
The Cell painted a far more convincing nightmare world of the subconscious.
Inception was possibly the most up-tight flick I have seen in ages. Still fun, but nowhere near a five-star film.