When Batman v Superman: Dawn of Justice was first announced in 2013, many assumed that Hans Zimmer would return to provide the score, since he worked on both Man of Steel and The Dark Knight trilogy. However, the composer expressed reluctance to join this superhero adventure, because he didn't want to create new Batman music after working on Christopher Nolan's trilogy. The solution presented itself in the form of a collaborator, Tom Holkenberg, a.k.a. Junkie XL, who worked on the Batman theme while Hans Zimmer crafted the Superman theme. Today we have a new preview from DC Entertainment, which features both composers shedding some light on their process.

The video starts out with Hans Zimmer admitting that he originally turned down director Zack Snyder's offer to score Batman v Superman: Dawn of Justice, before realizing he should work with a collaborator. Junkie XL also talks about how energetic director Zack Snyder is to work with, while Hans Zimmer sheds some light on the importance of Wonder Woman's (Gal Gadot) theme, which he describes as a "banshee wail" that had to still be feminine. The video also features several excerpts from the score, including themes for Wonder Woman, Batman (Ben Affleck), Superman (Henry Cavill) and Lex Luthor (Jesse Eisenberg).

RELATED: #ThanksBatfleck Trends on Twitter as Fans Celebrate Ben Affleck's Batman

Back in January, Warner Bros. and Water Tower Music released the full track list for the Batman v Superman: Dawn of Justice soundtrack, which will be released tomorrow, March 18, one week before the movie arrives on March 25. The 2-CD deluxe package, the digital deluxe version, and the 3-disc deluxe vinyl set feature over 90 minutes of music, five bonus tracks, an exclusive fold-out poster and liner notes from the composers. Additionally, the vinyl set features etched vinyl art and an album download card.

Following his titanic struggle against General Zod, Metropolis has been razed to the ground and Superman is the most controversial figure in the world. While for many he is still an emblem of hope, a growing number of people consider him a threat to humanity, seeking justice for the chaos he has brought to Earth. As far as Bruce Wayne is concerned, Superman is clearly a danger to society. He fears for the future of the world with such a reckless power left ungoverned, and so he dons his mask and cape to right Superman's wrongs. The rivalry between them is furious, fueled by bitterness and vengeance, and nothing can dissuade them from waging this war. However, a dark new threat arises in the form of a third man: one who has a power greater than either of them to endanger the world and cause total destruction. Take a look at this new preview with Batman v Superman: Dawn of Justice composers Hans Zimmer and Junkie XL.