Question: Leo Sidran co-produced "Al Otro Lado Del Rio" for the soundtrack to a movie about what man? 
Sentence (from "The Motorcycle Diaries (film)"): As well as being a road movie, the film is a coming-of-age film; as the adventure, initially centered on youthful hedonism, unfolds, Guevara discovers himself transformed by his observations on the life of the impoverished indigenous peasantry.
Relevant evidence: No