Soundtrack zostanie wydany na zachodzie przez WaterTower Music. Za muzykę odpowiada Kevin Kliesch (Thundercats). Soundtrack zostanie wydany w USA 4 lutego 2014 roku, w tym samym dniu co film na DVD i Blu-ray.
Lista utworów:
1. Justice League: War – Opening Titles (0:39)
2. Green Lantern Meets the Parademon (0:47)
3. Rooftop Battle/Chase Through the City (3:24)
4. Underground Tunnels (2:27)
5. Silas Updates Barry (0:41)
6. Game Day (1:19)
7. Diana and the Angry Mob (1:34)
8. Billy Meets Victor/Superman Makes an Entrance (2:30)
9. Superfriend or Superfoe?/Enter Darkside (4:12)
10. Parademons Break Through/Saving Victor (3:19)
11. Fighting the Parademon Horde (2:04)
12. Billy Becomes Shazam (0:42)
13. Darkseid’s Arrival (4:46)
14. Batman Unmasked/Darkseid Homeworld (2:02)
15. The Heroes Join Forces (1:47)
16. Off to Rescue Superman/Darkseid Battle (2:43)
17. The Battle Continues (7:10)
18. Final Battle (5:55)
19. Saving the Day/Award Ceremony/End Titles (6:29)
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W obsadzie Justice League: War są Jason O'Mara (Batman), Michelle Monaghan (Wonder Woman), Steve Blum (Darkseid), Sean Astin (Shazam), Chris Gorham (Flash), Alan Tudyk (Superman), Justin Kirk (Green Lantern), Bruce Thomas (Desaad) i Shemar Moore (Cyborg).
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