Captain Marvel (DC Comics) abilities. Based on book sales, the character was the most popular superhero of the 1940s, outselling even Superman. Fawcett expanded the franchise to include other "Marvels", primarily Marvel Family associates Mary Marvel and Captain Marvel Jr., who can harness Billy's powers as well. Captain Marvel was also the first comic book superhero to be adapted into film, in a 1941 Republic Pictures serial titled "Adventures of Captain Marvel". Fawcett ceased publishing Captain Marvel-related comics in 1953, partly because of a copyright infringement suit from DC Comics, alleging that Captain Marvel was a copy of Superman. In 1972, DC licensed the
Captain Marvel (DC Comics) Cary Grant and Jack Oakie were made as well. Fawcett Publications' founder, Wilford H. Fawcett, was nicknamed "Captain Billy", which inspired the name "Billy Batson" as well as Marvel's title. Fawcett's earliest magazine was titled "Captain Billy's Whiz Bang", which inspired the title "Whiz Comics". In addition, Fawcett took several of the elements that had made Superman the first popular comic book superhero (super-strength and speed, science-fiction stories, a mild-mannered reporter alter ego) and incorporated them into Captain Marvel. Fawcett's circulation director Roscoe Kent Fawcett recalled telling the staff, "Give me a Superman, only have his other identity be a