Image Credit: Milly Alcock as Supergirl (Image: Warner Bros.) Strength, certainty, and purpose are some of the common ...

Everyone calls Superman the strongest Kryptonian—but what if Supergirl has actually been the bigger powerhouse all along?

Warner Bros. Discovery has shared a full breakdown of what fans can expect from this weekend's Superman Day, and it sounds like much of the spotlight will shift to Kara Zor-El to tie into Supergirl.

Warner Bros. Discovery and DC invite fans around the world to celebrate Superman Day on April 18th, 2026, the anniversary of Superman’s debut, with a global, multi-platform celebration for fans of ...