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Harry Belafonte's career as actor and singer takes a back seat to his impassioned social activism in a detailed portrait of the ‘Day-O’ crooner that looks set to rival Marley as 2012’s definitive showbiz documentary.

Be it civil rights, apartheid or famine in Africa, the indefatigable octogenarian can always be depended on to fight the good fight, even when dealing with such thorny modern concerns as black incarceration and gang violence.

Neil Smith is a freelance film critic and writer who contributes regularly to Heat, SFX and Screen International. He's a long-time member of the London Film Critics’ Circle and was a contributing editor at Total Film for many years.