[2] A separate film score album, titled The Suicide Squad (Score from the Original Picture Soundtrack), was also released by WaterTower Music on the same date with John Murphy as the composer, replacing Gunn's frequent collaborator Tyler Bates who was originally to be the film's composer.

[4] Tyler Bates was originally pitched to be the film's composer, due to his frequent collaboration with director James Gunn.

However he left for unknown reasons and in May 2020, British composer John Murphy replaced Bates.

[14] "Modern Love" by David Bowie, "Rusty Cage" by Johnny Cash, "Draw the Line" by Aerosmith and "Death on Two Legs" by Queen were also considered to be part of the film's soundtrack, but they were dropped.

Other rejected songs were "Somos Sur" by Ana Tijoux & Shadia Mansour, "The Human Paradox" by Dynazty, "Resistiré" by Resistré México, "A Perfect Miracle" by Spiritualized, "Sometimes" by Kero Kero Bonito and "El Pueblo Unido Jamas Sera Vencido" by Inti-Illimani.