Filmmaker Erin Lee Carr spent 2½ years developing this project. She had to reshape it after the release of Framing Britney Spears (2021) in early 2021, taking on the responsibility of the conservatorship as Britney speaks out - focusing less on how she was culturally treated but more the consequences of it.
The film used audio from an infamous leaked voicemail from Britney to a lawyer that has been out since 2009 in which back then most people doubted it or downplayed what she said.
While Britney Spears wasn't involved at all in the making of this film nor ever acknowledged it, director Erin Lee Carr sent her a letter about it and says to have reason to believe that Spears was able to read it.
Erin Lee Carr says that during the creation of the doc, she attempted to include a number of celebrities, but many of them declined to participate.