Soshite Kozure Ōkami: Shikaku no Ko is the latest incarnation of the popular Lone Wolf and Cub manga, and it picks up when Shin Kozure Ōkami (New Lone Wolf and Cub) left off. Dark Horse comics has been publishing the original Lone Wolf and Cub manga with artist Goseki Kojima in North America, and it announced at New York Comic Con 2006 that it licensed the New Lone Wolf and Cub manga run. Media Blasters licensed a Japanese live-action television series based on the original manga. Previously, Amingo licensed a Japanese 1972 live-action film version and its five sequels. A Hollywood film adaptation of the manga was planned, but director Darren Aronofsky , The Wrestler) told Mtv's's Splash Page in January that the project is not longer in active development, despite his continuing interest.
http://www.animenewsnetwork.com/news/2009-04-14/lone-wolf-and-cub-manga-resumes-in-katana-web-mag