From the article:
"This project was originally considered for a movie at New Line, but proved too sprawling to confined to a feature film. Deadline also notes that it took del Toro a long time to woo creator Urasawa into being comfortable with Hollywood again after the original idea was scuttled."It seems like a good number of manga are getting live action adaptations - XXXHOLiC, Library Wars, and now Monster - but this is the first for HBO. Will Monster find a good home along such programs as Game of Thrones and True Blood?