The sequence has a dark tone, at least before the whole Justice League arrives on the scene to support Batman with the original soundtrack, but, the Danny Elfman soundtrack had a more positive reproduction of the 1989 Batman theme song in the background.
Rumor claims that the original version of the film had Batman aiming to sacrifice his life to make up for the guilt regarding what transpired with Superman, and the grimness of the music is proof of that. However, the scene in the eventual film shows Batman as a guy who is grappling with leadership and plans related to taking on the threat single-handedly, and that’s why it became more crucial to resurrect the Superman.
Justice League has been released on Blu-Ray, DVD, and Digital formats. Justice League’s cast includes Ben Affleck as Bruce Wayne (Batman), Henry Cavill as Kal-El/Clark Kent (Superman), Gal Gadot as Diana Prince (Wonder Woman), Jason Momoa as Arthur Curry (Aquaman), Ezra Miller as Barry Allen (The Flash), Ray Fisher as Victor Stone (Cyborg), Ciarán Hinds as Steppenwolf, Amy Adams as Lois Lane, Jeremy Irons as Alfred Pennyworth, Diane Lane as Martha Kent, Connie Nielsen as Queen Hippolyta, J. K. Simmons as Commissioner James ‘Jim’ Gordon, Joe Morton as Dr. Silas Stone, Amber Heard as Mera, and Billy Crudup as Dr. Henry Allen.