'No Cameras Allowed' is a documentary about Marcus Haney, a kid who has faked his way into more than 50 major music festivals while posing as a photographer.

He's so good at sneaking into venues and shooting quality pics that Mumford and Sons eventually brought him on as their official photographer. Now he's one of the most sought after rock photogs in the world.

It would be impossible to tell Haney's story without a constant backdrop of music, and 'No Cameras Allowed' boasts plenty of it. The film features performances or music by Muse, Coldplay, Phoenix, Passion Pit, Tegan and Sara, Lykke Li and more. The above trailer prominently features the Naked and Famous, who also contribute to the soundtrack.

It's not clear when the movie will be available to the public, but a screening took place Wednesday at the Wiltern in Los Angeles.

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