FILE - Director Woody Allen attends a special screening of "Wonder Wheel" on Nov. 14, 2017, in New York. A docuseries about the relationship of Woody Allen and Mia Farrow and its fallout is coming to HBO. The four-part documentary series is titled "Allen v. Farrow" and will debut Feb. 21, 2021, on HBO. Allen and Previn didn't participate in the documentary, nor did Moses Farrow, the son of Allen and Mia Farrow. “Allen v. Farrow,” from filmmakers Kirby Dick, Amy Ziering and Amy Herdy, will debut Feb. 21 on HBO, with episodes airing weekly.