The Ninja Scroll TV series is a stand-alone series, but it still has many references to suggest that it is a sequel to the movie.
The CD soundtrack was released August 26, 2003.
The Region 1 DVD collection was originally released in 3 separate volumes. It was then re released in a box set in two versions: a stand alone version in a cardboard box, or a limited edition version in a tin and a mini Jubei Kibagami figurine.
The TV show visits locations are references to the movie; the sets aren't the same as they were in the movie but are very similar (the "bamboo" scene and the "bridge" scene from the opening to the movie, for instance).