Why the documentary RGB surpasses the recent movie-version of the Justice's life

I wasn't initially that keen on watching the 2018 documentary RGB, as I felt that I'd already had the full story about Justice Ginsberg from the nearly contemporary movie version,On the Basis of Sex, but as it turns out the documentary (RBG) is in my view the much better movie, giving a more complete and, apparently, accurate picture of RBG's life, accomplishments, background, and personality. Obviously a movie version is "based on" true events but has to make many narrative compromises and decisions the keep the story moving along and focused, but now, having seen both, it's clear that the On the Basis had some significant distortions. First, it totally missed the essence of RBG's marriage and her relationship with husband and family: the documentary makes it clear that the husband was a real kibbitzer and was much more the family man, in a real role reversal; there's also no indication that they ever tried a case together - his expertise in law was far removed from her expertise and interests. The movie made is think that RBG's whole career focused on one key case - a reverse-discrimination in which she fought for and won equal rights for a widowed father; that much is true - and was a shrewd decision to take on that case - but we get a better sense from RGB that there were myriad key cases that she fought for, argued, and won. We sense in the documentary that she was and still is extremely driven and laser-focused. On the Basis pretty much stops at her first major court victory - and that's OK, no need to tell her entire life story - but the documentary has lots of great footage that shows her character and determination and subtle wit today, as shes's in her 80s and, god help us, living w/ serious health issues. Among that finest and perhaps saddest moments in RGB is her Senate confirmation hearing, in which Sen Hatch of all people says to her that he disagrees w/ most of her views but he's been impressed by her testimony and will vote to confirm - nobody could imagine that from today's Republicans. The documentarians, Betsy West and Julie Cohen, have a lot of fun w/ the rise of the moniker The Notorious RGB, and include nice footage of RGB working w/ a personal trainer (!), meeting w/ students, attending and appearing in an opera, and appearing on several panels (including some footage w/ her personal friend and ideological antithesis, Justice Scolia) and well as interviews with her children and her childhood friends - a fine job all around that never feels like an assemblage of talking heads.