
2025 · Kirk Jones
For when you want to feel genuinely lifted by a true story without being lied to — a comfort watch that earns its comfort. Good for a night when you need proof that decency exists.
John Davidson is fifteen, growing up in a small Scottish Borders town in the 1980s, when he's diagnosed with Tourette syndrome — including the rare, cruelly misunderstood symptom that makes him swear uncontrollably. Drawn from a true story, the film follows him from a turbulent adolescence into adulthood, through classrooms, job interviews and bus rides that turn into ordeals, as the kindness of a few people helps him carve out a life and a purpose on his own terms.
Bracing and funny in the same breath — it lets you laugh with John, never at him, then catches you off guard with how much the small humiliations sting. It moves like a warm British crowd-pleaser but keeps an honest edge of exhaustion and loneliness underneath.
Robert Aramayo is remarkable as John, playing the tics not as a showcase but as constant weather the body lives under — and letting a gentle, quick-witted man stay visible beneath them.
Kirk Jones, who made his name with warm-hearted British comedies, threads a difficult needle: the swearing is played for its real social havoc, comic and mortifying at once, without ever tipping into mockery or sainthood. The period detail of 1980s and '90s small-town Scotland grounds it, and the film's docudrama roots keep the sentiment honest.
It brings to the screen the story of a man a BBC documentary made briefly famous in 1989, and stands as a rare mainstream portrait of Tourette's told with humor from the inside rather than pity from the outside.
Reception & legacy: how I Swear was received, argued over, and remembered →
John Davidson became briefly, involuntarily famous in 1989, when a BBC documentary about his Tourette syndrome made him one of Britain's most recognizable teenagers — a Scottish boy whose involuntary tics and outbursts turned every classroom, bus ride, and job interview into an ordeal. Kirk Jones, the British director of Waking Ned Devine and Nanny McPhee, tells Davidson's story from adolescence in the Borders town of Galashiels through decades of setback and slow-won dignity, as the condition's most misunderstood symptom — coprolalia, the compulsive swearing that gives the film its title — collides with small-town propriety. Robert Aramayo gives a fearless central performance, playing the tics not as affliction-movie showcase but as a body's weather, constant and exhausting, beneath which a gentle, funny man keeps insisting on being seen. Jones's touch is warmly populist in the tradition of British crowd-pleasers like The Full Monty, but the film earns its uplift honestly, grounded in the real Davidson's later life as an advocate who changed how the condition is understood in Britain. It premiered at Toronto in 2025 to standing ovations.
Lines of influence