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 Britain IGN ranked Captain Britain as the 79th greatest comic book hero of all time stating, "as he is the only Marvel hero to receive the benefit of Alan Moore's pen, the character enjoys very rarefied status in the Marvel Universe", and 34th in their list of "The Top 50 Avengers". An article in the Times of London in March 2016 stated, "Captain Britain's nemesis turned out to be lack of popularity, however, and his adventures ended after a year". A number of trade paperbacks have been released collecting both the early run and Alan Moore's updated version (his run being