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In "The Motorcycle Diaries," Gael García Bernal portrays the iconic revolutionary Che Guevara. The film follows Guevara's transformative journey through South America, where he witnesses poverty and injustice firsthand, shaping his political beliefs and inspiring his future activism. Bernal's portrayal captures the young Guevara's idealism, passion, and determination, providing a glimpse into the genesis of one of the most influential figures of the 20th century.