Review: I Swear

There’s a version of I Swear that plays like a crowd-pleasing triumph, a handsomely mounted, deeply felt biopic about adversity, empathy, and the slow churn of social understanding. And for long stretches, that’s exactly the film Kirk Jones delivers. But what lingers isn’t just the uplift, it’s the abrasion underneath it. It's the sense that every small victory has been hard-won against a world that doesn’t merely misunderstand John Davidson, but actively resists accommodating him.

Based on the life of Tourette’s campaigner John Davidson, I Swear opens with a disarming bit of tonal sleight-of-hand: a public honor, a formal setting, and then “Fuck the Queen.” It’s funny, shocking, and immediately clarifying. This is a film that understands the uneasy space it occupies, where laughter and discomfort are often indistinguishable, and where the punchline lands hardest on the person delivering it.

From there, Jones rewinds to 1980s Scotland, where a young John (Scott Ellis Watson, excellent) begins to develop tics he can’t name, much less control. The film is at its most effective here, trapping us inside that confusion. There’s no explanatory dialogue, no early diagnosis to soften the blow, just a gradual, terrifying realization that something is happening, and no one around him is equipped to deal with it. The adults in his life oscillate between denial, frustration, and outright cruelty, and the film refuses to excuse any of it as mere ignorance. If anything, it frames ignorance as a choice with consequences.

When we jump ahead to adulthood, Robert Aramayo takes over the role with a performance that’s as physically precise as it is emotionally open. It’s the kind of work that could easily tip into showiness, but Aramayo sidesteps that trap. His John isn’t defined by the tics so much as shaped around them, constantly negotiating a life where even the most basic interactions carry an element of risk. A job interview, a date, a night out, each becomes a kind of low-level suspense set piece, where the question isn’t if something will go wrong, but how badly.

That sense of unpredictability extends outward. The film smartly positions John not just as vulnerable, but as someone who can inadvertently make others feel unsafe. It’s a tricky balance, but I Swear leans into it, generating tension that feels honest rather than exploitative. When things spiral, and they often do, the consequences aren’t smoothed over for narrative convenience.

The supporting cast helps ground all of this. Maxine Peake and Peter Mullan, as the surrogate figures who offer John something resembling stability, bring a warmth that never feels sentimental. Their presence gives the film room to breathe, even as the script occasionally rushes past the moments that matter most. Shirley Henderson, meanwhile, does particularly sharp work as John’s mother, capturing a brittle mix of resentment and self-pity that quietly reframes much of his early suffering. There’s a suggestion that she experiences his condition as an affront to her own sense of order, a dynamic the film sketches with uncomfortable clarity.

For all its strengths, I Swear isn’t immune to the pitfalls of the genre it so clearly belongs to. Structurally, it follows a familiar arc, and in its final stretch, it begins to feel the strain of trying to encompass too much. Key developments, John’s advocacy work, and his growing sense of purpose arrive in quick succession, compressing what should feel like an earned transformation into something closer to narrative shorthand. It’s not that these beats don’t land; it’s that they don’t have the space to resonate.

Still, what ultimately elevates the film is its perspective. I Swear is less interested in presenting Tourette’s as an obstacle to be overcome than in interrogating the systems and attitudes that make it so debilitating in the first place. The real antagonist here isn’t the condition, it’s the narrowness of the world around it.

That clarity of focus, paired with Aramayo’s deeply felt performance, gives I Swear a weight that lingers beyond its more conventional framing. It may wear the clothes of an inspirational biopic, but it’s at its best when it resists easy inspiration,when it sits in the discomfort, the unpredictability, and the quiet, ongoing fight to simply exist on one’s own terms.

3.5/5