The Batman Complex, created by YouTube user themanbatman, tells the story of a mentally ill Bruce Wayne (Christian Bale) who believes that he is actually Batman. His therapist introduces Cobb (Leonardo DiCaprio) and his team to perform an inception to apparently remove the ailment from his mind. But they'll have to deal with a militarized subconscious in the form of the Joker, Ra's al Ghul, and Two-Face, plus the Batman personality itself. Meanwhile, Cobb himself is slowly descending into madness as he and his team go deeper into Bruce Wayne's troubled psyche.
I'm blown away by this trailer every time I see it. It's typical of the work of themanbatman, who has made extensive trailer campaigns for a Marvel/DC crossover film series (titled Who's Side Are You On?), plus a very effective trailer for The Dark Knight using the track "Mind Heist." Warning, there is some swearing in the trailer, and it advertises a movie which is admittedly very freaky. There are also two other trailers for The Batman Complex, available on themanbatman's YouTube account, and I gladly point you to his work. The only other thing I can say about it is that I so very wish it were real. I'd pay money to see it! At the very least, in only makes me want to see Inception all the more.