The estate of one of the co-creators of “Superman” has sued Warner Bros. Discovery (NASDAQ:WBD) to prevent the release of the latest movie featuring the comic-book character this summer in a number of major overseas markets,

Before you get too excited about James Gunn’s Superman, there’s a new lawsuit against DC that could change things.

The estate of Joe Shuster, who co-created Superman in the late 1930s with Jerry Siegel, is suing WBD, and by extension DC Comics, is claiming in a lawsuit filed today in Federal C