David Lang
Requiem For A Dream (2000)
Darren Aronofsky, director
David Lang, arranger
this arrangement is not available for performance
Recordings: 
Requiem for a Dream Soundtrack (2 LPs)
Artist: Kronos Quartet + Clint Mansell
Release Date: 2016
Label: Nonesuch
Requiem For A Dream — DVD
Artist: Ellen Burstyn (Actor), Jared Leto (Actor), Darren Aronofsky (Director)
Release Date: 2000
Label: Lionsgate