Judy Heumann spent decades insisting that disability was a civil rights issue, not a medical one — and the 1977 San Francisco sit-in she led is one of the most underreported acts of mass civil disobedience in American history. Sian Heder's film, based on Heumann's 2020 memoir, finally gives that story a mainstream platform, and for the most part it earns the telling. Ruth Madeley, who has spina bifida and is herself an activist, is the right choice for Heumann in every dimension that matters. She plays the role with intelligence rather than sentiment — Heumann as strategist, as operator, as someone who understood that politeness was a losing game against entrenched bureaucratic indifference. The film is at its best in the ensemble scenes, where deaf and disabled protesters debate priorities, make jokes about sex, and treat each other as full human beings rather than inspirational symbols. The coalition is the real story here: a rainbow alliance of wheelchair users, deaf activists, gay action groups, and the Black Panthers, all holding the San Francisco Health, Education and Welfare offices for 25 days until Joseph Califano finally signed the accessibility provisions of Section 504, which Nixon, Ford, and then Carter had each found reasons to obstruct. That a film has not been made about this before is its own kind of institutional failure. The soft spot is Califano. Mark Ruffalo plays him as a man of exasperated good intentions who eventually does the right thing — which is a significant rewrite. In reality, Califano personally authorised attempts to starve the protesters out. The film does not dramatise this. It's a meaningful omission: the difference between a system that resists change through inertia and one that actively weaponises state power against disabled people. Ruffalo's performance, competent but single-note, can't quite paper over the gap. Dylan O'Brien plays TV reporter Evan White, who embedded himself in the protest; Jon Beavers plays Jim Pechin, Heumann's real-life ally, though the script elevates the friendship to romance — a Hollywoodisation that the film's honesty about disability and sexuality elsewhere makes feel slightly incongruous. Madeline Delp as Kitty Cone is quietly effective. Heder directed CODA, which won the Best Picture Oscar in 2022, and the same instincts are present here: warmth, ensemble energy, a commitment to authentic casting, and a tendency to soften conflict at the edges. Being Heumann is a better political film than CODA — the structural stakes are clearer, the antagonist is an institution rather than a family — but it still flinches at the hardest moments. What it does not flinch at is the fundamental argument: that dignity is not granted by benevolent officials but seized by organised people willing to hold ground. For a mainstream streaming film about disability rights, that is not nothing. The movement deserves a harder-edged treatment eventually. For now, this is the one we have, and Madeley makes it worth watching.