Mumford And Sons have unveiled the trailer for new tour film Big Easy Express – you can watch it below.
The tour diary follows the band on their Railroad Revival Tour of the US with the likes of Edward Sharpe And The Magnetic Zeroes and Old Crow Medicine Show.
'Big Easy Express' will be premièred at this year's SXSW festival, set to take between March 9-17.
Meanwhile, Mumford & Sons will headline this year's RockNess festival, it has been announced.
The band, who have been in the studio working on their second album, will be joined by fellow headliners Deadmau5 and Biffy Clyro.
Festival director Jim King said that he was "over the moon" that Mumford & Sons had agreed to perform at the event.
Justice, Metronomy and Azealia Banks have also been added to the line-up for year's RockNess festival.
Noah And The Whale, Death In Vegas and Ed Sheeran will also perform at the event, which takes place in Loch Ness in Dores near Inverness from June 8-10, 2012.