Trailer: 'Klitschko'

The German-produced film

The German-produced film "Klitschko," part of the Tribeca/ESPN Festival, works because the brothers Vitali and Wladimir are likeable, charismatic figures. In addition to exploring the boxers' relationship and careers, the film includes some remarkable, ultra-sharp, ultra-slo mo footage of bouts in which punches cause faces to contort in truly extraordinary directions.

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