Viewers are struggled to name every hero featured from DC Comics history. Wildcat, Sandman and Max Mercury are among the many included

The very American comic book hero has always faced challenges abroad. But Trump's controversial global policies and a China market that’s (largely) moved on from Hollywood tentpoles haven't helped.

Writer-director James Gunn has some theories about why. "Superman is not a known commodity in some places. He is not a big, known superhero in some places like Batman is. That affects things," Gunn told Rolling Stone this week,