1) Hans came up with the film's famed marimba instrumentation almost out of spite after Tony Scott came back after shooting and told him he'd have a much smaller music budget than originally anticipated. “I remember being in music class where we had these xylophones and marimbas, just a horrible noise. ‘Okay, you took away all the money, all you’re gonna get is these marimbas.’”

2) Hans pulled in Mark Mancina because he ended up getting too busy on one of his two major rewrites of the music for James L. Brooks' I'll Do Anything.

3) Mark found working with Tony Scott extremely difficult, in part because the director was overly enamored with a temp track dominated by Black Rain. “No matter what you wrote it was hard, and even when you got something that you think he liked you were never sure. There was a lot of reworking cues. I didn’t get into a good rhythm with him.”

4) Jan de Bont asked Hans Zimmer to score Speed on the basis of some of the music he heard in True Romance, but Hans credited Mark for those tracks.