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Why Richard Linklater's Boyhood took 12 years to film

10 July 2014 Last updated at 00:01 BST

Director Richard Linklater's latest film Boyhood, is a coming-of-age story shot over a 12 year period, with the same group of actors.

Linklater, who is no stranger to inventive storytelling, hoped the unusual approach would bring added authenticity to the film.

Talking Movies' Tom Brook reports.

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