No, it is not about an obsessive drug addict, Junkie XL is the name of a man responsible for that fat sound in Batman vs Superman feature just coming in the cinemas, and of many more.
Here is on how it all started back in the 1998 with the Blade movie and how the passion continued. Nice read, here in WIRED Mag.
The first time composer Tom Holkenborg-better known by his nom de boom, Junkie XL-heard his music in a film, it wasn’t part of the score. It was in the movie Blade, which opens with his track “Dealing with the Roster” playing as a crowd of blood-soaked vampires dances at a rave.