Yes, I am not ashamed to use the word "Batmanime". Much like the Animatrix, part of the promotion for The Dark Knight includes a series of short, animated films made by some of the top studios from Japan. Some of the key names set to direct are Yasuhiro Aoki (Neon Genesis Evangelion), Hiroshi Morioka (Tsubasa Chronicle), and Shoujirou Nishimi (Akira, Detective Conan).
Bruce Timm (Batman: The Animated Series, Superman: The Animated Series, Justice League, Batman Beyond) is also set to produce.
Something else you might notice in the trailer is Kevin Conroy, who voiced Batman in every single Bruce Timm production is voicing him as well in this version.
Check out the trailer here.
Batman: Gotham Knight comes to DVD July 8th.
Sources:
Internet Movie Database
Yahoo Movies