[Watch] Mumford & Sons Release Trailer for Railroad Revival Tour Film 'Big Easy Express'

Today, Mumford & Sons revealed the trailer for their upcoming tour documentary Big Easy Express, which contains footage from the band's 2011 Railroad Revival Tour in the U.S. alongside Edward Sharpe and The Magnetic Zeros and Old Crow Medicine Show. The tour saw the three bands living, eating, sleeping and recording onboard 15 vintage railcars, and the documentary is set to premiere at this year's SXSW Film Festival. You can watch the trailer for Big Easy Express above.

Mumford & Sons are currently working on the follow-up to 2009's Sigh No More.