Supergirl may be first and foremost Kara Zor-El's introduction to the DCU, but her cousin Superman makes a few appearances too. The latest superhero movie, and the second in the new revamped franchise, stars Milly Alcock as Supergirl, who reluctantly teams up with a young girl on a mission of revenge when her dog Krypto is poisoned.
However, as well as focusing on their mission, the movie also dives deeper into Supergirl's backstory – and how she first met her cousin, Kal-El on Earth. David Corenswet reprises his role as Clark Kent in the film and, according to director Craig Gillespie, he improvised a lot of his dialogue.
