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.

As 'Superman' continues to dominate the domestic box office after two weeks, James Gunn is commenting on the movie's international performance.

Superman may be harmed at the global box office by a measure of "anti-American sentiment," according to the movie's director, James Gunn.