Superdog 4: Phantom War Part 1 is an american 2020 film based off of DC Comic's canine superhero, Krypto/Superdog and the 2005 TV Show, Krypto the Superdog, premiering in theatres on May 15, 2020. This is the fifth of six installments, following Superdog, Superdog 2, and Superdog 3: Superdog v Bathound. The film is distributed by Warner Bros. and stars Ryan Kelley, Dylan Sprayberry, Kira Kosarin, Henry Cavill, Amy Adams, James Marsters, Uriah Shelton, Rene Levan, and Melissa Ponzio. This film is followed by Part 2 of Superdog: Phantom War, the final of all the films.