Mind bending plotting

So we just saw _Inception_ and while I can already tell that I will quickly tire of my husband's constant references to the "subcons", the plot was really interesting. (He's sitting on the couch twitching nervously, eyes wide...maybe he needs a drink to unwind?? This is the same man who couldn't handle the wall clock I had in law school where the numbers were backwards and it ticked counter-clockwise...)
Without spoiling anything for those of you who haven't yet seen this film (interesting cast, too), it was a pleasant reminder that unique movies can still be made, and intriguing ideas brought forth through popular films.
As a writer, I was impressed by the layering and interweaving of the various plots and subplots, and the quick yet effective character development. Plus, they didn't spoonfeed us with clear explanations of what was happening, or where we were going. I found it encouraging. If this can be made for the average moviegoer to digest, I shouldn't have to worry too much about my readers catching on to what I'm throwing down in my story. Right?
Not that I'm comparing my writing with anything directed by Christopher Nolan--he's pretty talented. I remember after watching _Memento_ at the theater, I went into the ladies' room afterwards, discussing the movie with my friend Denise who walked in behind me. I had even turned back to glance at her as we chatted. But when I waited for her to finish up, I couldn't find her in any of the stalls, and when I went back outside, she was already out there, swearing she hadn't gone in at all! My brain was so loopy from the movie that I apparently hallucinated. Now that's effective writing!