Documentaries spotlight familiar faces at Tribeca festival

By Chris Michaud NEW YORK (Reuters) - A world heavyweight champion, a brassy Broadway legend, ground- breaking comics, an Oscar-winning director and a four-legged Internet star are among subjects documentary filmmakers have trained their lenses on at this year's Tribeca Film Festival. Organizers say the two-week festival, which opened on Wednesday and includes nearly 100 features, has historically comprised nearly as many documentaries as narrative films, which often prove to be among its most popular offerings. ...

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