Wikimedia Commons/Supergirl 2026 movie Celebrity Milly Alcock brings Supergirl to life in the DCU, debuting in 2025's Superman before her own film in 2026 with Jason Momoa's Lobo. April 28, 2026 AceShowbiz - Milly Alcock is set to bring the character of Kara Zor-El, also known as Supergirl, to life in the upcoming DC Universe film directed by Craig Gillespie. After her debut in the 2025 movie Superman, Alcock's portrayal of the iconic heroine continues to generate excitement among fans and industry watchers alike.