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,
Superman beyond the comic books. Superman, Inc. merged with DC Comics in October 1946. After DC Comics merged with Warner Communications in 1967, licensing for Superman was handled by the Licensing Corporation of America. The Licensing Letter (an American market research firm) estimated that Superman licensed merchandise made $722 million in sales globally in 2017. 44.7% of this revenue came from the North American market. For comparison, in the same year, Spider-Man merchandise made $1.4 billion and Star Wars merchandise made $2.4 billion globally. The earliest paraphernalia appeared in 1939: a button proclaiming membership in the Supermen of America club. The