After an epic year that included three festivals in Belgium (the original), Sao Paulo, and Atlanta (despite all the mishaps), the creators of Tomorrowland/World are commemorating the series of dance festivals with a documentary called This Was Tomorrow, which is set for release on December 1st of this year.

The first trailer for the film was released over the weekend featuring incredible cinematography of the festival’s massive stages and dancing crowds backed by Steve Angello & Mako’s single “Children Of The Wild.” Watch the clip below, and visit Tomorrowland‘s web site for more information about the upcoming film.