He plays an angry young man who is healed by the love of a pretty girl, played by Lost's Emilie de Ravin.

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"If it was an angry young man like Amitabh Bachchan (Bollywood acting legend who rose to fame in the 1970s), they would paint his face red with anger and they would use techniques like painting over the canvas with a knife to give him a more rugged, macho look, " Jethwani explained.

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The World Bank report goes to great pains to argue that the proverbial angry young man in a poor country resorts to violence not because it is lucrative, though it sometimes can be, but because it provides a source of dignity not dissimilar to that provided by gang membership in poorer parts of the developed world.

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In the film, Zuckerberg is an angry, nervy, jealous young man who never smiles and speaks in a rapid-fire staccato.

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Ed Koch, a spokesman for the youth services office of Berlin's Tempelhof-Schoeneberg district, where the young man has been staying in the youth home, told CNN he is very angry about the hoax.

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His wiry physical presence suggests a young man who is as hungry in every sense of the word as he is angry.

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