Superman "Superman", and released in 1979 for the Atari 2600. The last game centered on Superman was "Superman Returns" (adapted from the movie) in 2006. Superman has, however, appeared in more recent games starring the Justice League, such as "Injustice 2" (2017). In a contract dated 1 March 1938, Jerry Siegel and Joe Shuster released the copyright to Superman to their employer, DC Comics (then known as Detective Comics, Inc.) prior to Superman's first publication in April. This was normal practice in the comic magazine industry and they had done the same with their previous published works (Slam Bradley, Doctor Occult,
Creator ownership in comics Walt Simonson, Jim Starlin, Len Wein, and Marv Wolfman. The effort failed to get off the ground. In addition, Adams, along with the Joker creator Jerry Robinson, notably and vocally helped lead the lobbying efforts that resulted in Superman creators Jerry Siegel and Joe Shuster receiving decades-overdue credit and some financial remuneration from Superman publisher DC Comics. Marvel Comics had a mixed history of responding to the issue of creator's rights. In 1978, Marvel and Howard the Duck writer Steve Gerber clashed over issues of creative control, and Gerber was abruptly removed from the series. This was the first highly