The best thing about Watanabe being cast was that after we heard Watanabe was going to play the main villain of the piece, the film's first poster came out with every major cast member's name except Watanabe written across the top and my friend said, "What is this racist shit?". Then the movie came out and we knew why he wasn't there. I've always wondered why Nolan never worked with Guy Pearce again after "Memento". He's one of the best actors of his generation, and I've kept hoping Nolan would give him a chance to really shine in a big movie, but it seems like Pearce generally prefers to be in more obscure stuff (despite appearing in "Bedroom Stories"). I can't think of any possible reason why Nolan wouldn't want to work with him again. IMDB says Alec Baldwin was his first choice for "Memento", but I can't imagine anyone doing a better job than Pearce. Speaking of "Memento" (and getting back on topic), Carrie-Anne Moss is someone else I'd like to see Nolan work with again too, although she may be too old now to play one of the female leads in this movie.