Showing up to a party uninvited might earn you a few dirty looks, but one filmmaker has proved doing the same backstage at a big-time music festival could earn you the opportunity of a lifetime.

Music buff James Marcus Haney, who was always too short on cash to earn entry to Austin City Limits, Glastonbury or Bonnaroo, resigned himself to the idea that he'd only ever be able to hear his favorite tunes on the radio. But one day, with a camera in hand and all reservations tossed to the wayside, he jumped enough fences, sidestepped enough security guards and flashed enough fake badges to land backstage at music festival heaven -- Coachella. And then, all bets were officially off.

In the trailer for MTV original doc "No Cameras Allowed," below, you'll see Haney journey across the country, break through miles of red tape and capture incredible footage of acts like Mumford & Sons, Jay-Z and Edward Sharpe & the Magnetic Zeros, to name a few. And though sneaking into concert series isn't the traditional (or legal) route most filmmakers take, there's no denying the guy's talent.

"The access and perspective he is so hungry for is what makes his images so unique and compelling, and the force that propels this behavior is deep within him and pure," says Mumford & Sons bassist Ted Dwane, who's featured in the video.

Check out the clip, tell us what you think of Haney's method and be sure to tune in to "No Cameras Allowed" on Friday, August 29 at 10/9c on MTV! Or, you can catch the film at Laemmle's Playhouse 7 in Pasadena, California or IFC Center in New York City for one week starting Friday, August 8!