Supergirl Lands Official Streaming Date on HBO Max

Published Sep 3, 2026, 1:10 PM EDT Catch the DC Studios flop from the comfort of your couch Image: Warner Bros. Pictures Sign in to your Polygon.com account DC Studios and Warner Bros. released Supergirl earlier this year in theaters as the second film in James Gunn's nascent cinematic DC Universe. Despite a solid star in the lead role and a story adapted from one of the character's most well-received comics, the movie failed to garner widespread critical and commercial success. Supergirl ended its theatrical run with just $126 million earned at the global box office. Now Warner Bros. and DC Studios have confirmed that Supergirl will land on HBO Max next week. Supergirl follows Milly Alcock as the titular hero, also known as Kara Zor-El, as she becomes embroiled in a hunt for the villainous Krem of the Yellow Hill after he poisons Krypto. The hunt also brings Kara into contact with the young girl, Ruthey, who enlists Kara's help in a mission of revenge, revealing that Krem killed her father as well. The True Grit-inspired story takes the unlikely pair across the galaxy to complete their shared search for revenge. The film was directed by Craig Gillespie and written by Ana Nogueira. The story was based on the Supergirl: Woman of Tomorrow comic series written by Tom King, who has been tapped by Gunn to serve as a core architect and writer for the DCU. DC Studios' Supergirl will officially begin streaming on HBO Max starting on Sept. 10. Will Supergirl return in future DC movies? Image: DC Studios While Milly Alcock makes for a wonderful Kara, the overarching story and execution of the film leave much to be desired. The film flopped at the box office with an opening weekend gross of $38 million, close to the abysmal opening of Joker: Folie à Deux. Our review at Polygon highlighted the main issue with the film, writing that, "where Gunn’s Superman set a high bar for weirdness and unexpected ways of reimagining familiar characters, Supergirl strolls under that bar without ever coming close to touching it. It suggests that the DCU may finally have an identity of its own, but that identity isn’t as startling or challenging as Superman might have suggested." Despite the poor response to the film, it has already been confirmed that Milly Alcock will be reprising her role. She will appear in Superman: Man of Tomorrow, which is set to be released on July 9, 2027. She will join an ever-expanding cast that includes returning cast members from Superman as well as the cinematic debut of Aaron Pierre as John Stewart, whom you can currently see in the Lanterns TV show.