There is no question that James Gunn 's Superman will be remembered as one of the biggest box office successes of 2025. Riding high on a wave of positive buzz and critical acclaim, the film made a huge splash when it debuted on the big screen in early July, and it earned over $600 million worldwide by the end of its theatrical run (it's the third highest grossing blockbuster of the year domestically and seventh highest grossing globally). Clearly people are loving the David Corenswet-led superhero feature – so is it any surprise that it has become the most successful streaming launch on HBO Max since Barbie ?
Superman was first made available for HBO Max subscribers 10 days ago, and in that time, it has held the focus of a hell of a lot of eyeballs. According to Variety , t