The reboot, written by David Johnson (Wrath of the Titans) is based on an obscure game entitled Chainmail, which D&D creator E. Gary Gygax developed before Dungeons & Dragons. The lawsuit, filed yesterday in California federal court, is seeking a declaration from Sweetpea Entertainment that it owns the rights to Dungeons & Dragons, and an injuction to stop the Warner Bros. project from moving forward. Warner Bros. is not listed as a defendant.
The filing asserts that Sweetpea Entertainment had acquired the rights to Dungeons & Dragons in 1994, to make the live-action Dungeons & Dragons feature, which did grant Sweetpea the right to make a sequel or prequel. However, Hasbro claims those rights have since reverted back to the toy company.