Searxng/Supergirl DCU movie Movie Discover where Supergirl fits in the DCU timeline. James Gunn confirms her solo film takes place between Superman and its sequel. March 23, 2026 AceShowbiz - Supergirl is one of the most eagerly awaited additions to the expanding DC Universe, and James Gunn, one of the lead creatives shaping this new franchise era, has now clarified its precise place in the DCU timeline. Set to release on June 26, 2026, the film will see Milly Alcock return as Supergirl following her brief cameo in the previous Superman movie.