Damien Chazelle shot a two-hour version of Babylon on his phone
Damien Chazelle pushed himself to cut down the three-plus-hour Babylon to just two hours as a rehearsal tactic

Usually, when a director talks about a version other than the theatrical cut, it’s a longer work that fleshes out the story, including all the little tidbits the director did not want to part with in editing. However, when making the lavish and exorbitant Babylon, director Damien Chazelle challenged himself by making a two-hour cut, in his backyard, using his iPhone.
“It’s a very tight, two-hour version of the entire movie, [filmed] on an iPhone in our backyard,” the director explains in a Q&A, per Entertainment Weekly.
Chazelle shot the two-hour version with the help of his wife, Olivia Hamilton (who plays Ruth Adler) and lead actor Diego Calva (who plays Manny Torres).
“We rehearsed the whole movie in his backyard, only Olivia, Damien, and I,” Calva says. “It was a very uncommon kind of situation.”