On the eve preceding the last night of U2’s epic, two-year-long 360 tour, the band has announced the premiere of From the Sky Down, a documentary about the making of U2’s Achtung Baby, on September 8th at the Toronto International Film Festival. The film is directed by Academy Award-winner David Guggenheim, the filmmaker behind An Inconvenient Truth, It Might Get Loud and Waiting for Superman (incidentally, three of the top 100 highest-grossing documentaries of all time). The film charts the creation of Achtung Baby through rare, unseen footage and interviews about the process that nearly broke the band in the midst of redefining its sound. Following the overwhelming success of The Joshua Tree, the band became bored playing their songs and sought to reinvent themselves. With demos they’d recorded in Dublin, they absconded to a former SS ballroom at Hansa Studios in West Berlin following the fall of the Berlin Wall to develop the gritty, industrial atmospherics that would become the foundation for Achtung Baby. Now, on the 20th anniversary of the album, in addition to the documentary, U2 is reissuing Achtung Baby with outtakes and alternate versions of songs as well as an iPad app.