About the film
Liberation Day is a 2016 music documentary film directed by Uģis Olte and Morten Traavik. It follows the Slovenian band Laibach as it travels to North Korea in 2015 to be the first Western band to play in the country, performing songs from The Sound of Music as part of the National Liberation Day programme.
From the film's Wikipedia article (CC BY-SA 4.0).