Since March 2023, Corenswet has been married to actress Julia Best Warner, whom he met at an acting summer camp when he was still a young boy. Though their wedding was years ago, the pair only made their red carpet debut this week, at the Los Angeles premiere of Superman. Warner and Corenswet also have a one-year-old son.

In a world-historical moment rife with villainy and loose scruples, James Gunn has staked his reboot of the DC Comics Universe on a Superman with core values, a sunny disposition, and a weakness for romance.