(Rolling Stone) -- "Making Achtung Baby is the reason we're here now," Bono says early on in Davis Guggenheim's new U2 documentary, "From The Sky Down," which premiered at the Toronto International Film Festival on Thursday night. The film -- which focuses on the tumultuous time in the band's career 20 years ago -- shows how Bono, guitarist the Edge, drummer Larry Mullen Jr. and bassist Adam Clayton got back on track: After considerable infighting and "creative differences" while the four hunkered down at Hansa Studios in Berlin in 1990 to try to make an album, the song "One" finally and miraculously sprouted from the unfinished "Mysterious Ways."
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The film focuses on the tumultuous time in the band's career 20 years ago
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There are sound-only interviews that Guggenheim was able to draw from each band member
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There is a lot of levity too, including a satirical montage of bands that have imploded
"The movie has this pretty long [section] where you hear them write that song -- and it's goose bumps," @placeholder told Rolling Stone in Toronto.