In an interview with SPINOFF ONLINE promoting his re-teaming with Christopher Nolan on "Interstellar," Oscar-winner Hans Zimmer said that he "agonized" at the prospect of returning to Batman, after scoring each film in Nolan's "Dark Knight" trilogy. So the compromise he made with "Batman v Superman" director Zack Snyder was to team with fellow composer Junkie XL on "Batman v Superman" -- and they're dividing the labor based on the two titular heroes.
"I'm going to be working with Junkie XL, who really is a great friend," Zimmer told SPINOFF. "He just finished the 'Mad Max' score. I said to him, 'You take care of Batman. I'll do the other guy.' And Zack loved that idea. It's a way out."
So not only will "Batman v Superman" have opposing crimefighters, it'll have opposing themes. And it won't be the first time Zimmer and XL have collaborated -- XL worked on both 2013's "Man of Steel" (credited with "additional music and rhythm design") and 2012's "The Dark Knight Rises" ("composer: additional music"); both scored by Zimmer.