Director: Satoshi Kon. 90 min. Rated R. Japan. Animation.
"This is your brain on anime." That's the movie's tagline, and if another movie called Inception hadn't completely owned the concept four years later, I probably would have gone berserk over this. The concept of looking into someone's dream and injecting ideas into their mind using high-level technology is outlined incredibly well, through appropriately whimsical animated renditions, making the dreams look exactly like ... dreams. Nolan probably didn't steal the idea (he'd already written a draft for Inception by 2001), but this shows how Hollywood-driven exposure can help others 'own originality'.
PS: From the creator of Perfect Blue. This was one smart fellow.