Superman: Whatever Happened to the Man of Tomorrow? reference to one of the nicknames of Superman as the "Man of Tomorrow", and was later again used in the title of another Superman . The comic book, "Action Comics" #1, published in April 1938 by "National Allied Publications" (later renamed DC Comics), marked the first publication of the character of Superman created by Jerry Siegel and Joe Shuster. The comic quickly became a success, and its editor soon realized that it was because of the popularity of the character. In an unprecedented move at the time, National Allied Publications introduced a second comic book, "Superman", exclusively featuring the popular
Superman in film DVD/home video releases of "Superman", "Superman II", "Superman III", and "Superman IV". The set was valued at US$49.99 for the DVD release and US$29.99 for the VHS release, and received positive reviews. The four Christopher Reeve films were again released on November 28, 2006, in new DVD releases to coincide with "Superman Returns", also released in that year. "Superman" was released in a four-disc 'special edition' similar to "Superman II", which was released in a two-disc special edition. Both "Superman III" and "IV" were released in single disc 'deluxe editions', and all four releases were available together in "The Christopher