Dazzler (Marvel Comics) super-specials by the end of 1977. Marvel Comics would develop a singing superhero, while Casablanca would produce a singer. The two companies would then work with Filmworks and produce a tie-in motion picture; Marvel Comics Editor-in-Chief Jim Shooter wrote a treatment for the project. Romita, Jr. originally intended for the character to resemble model, actress, and singer Grace Jones, but representatives from Filmworks – wanting to promote model and actress Bo Derek – insisted on design changes to reflect Derek's features. Dazzler guest starred in Marvel titles, such as "The Uncanny X-Men", "The Avengers", the "Fantastic Four", and the Marvel
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