I Swear is a powerful, unforgettable true story that stays with you.

I got the chance to watch I Swear, and this is one of those films that quietly hits you and then lingers long after it’s over.

At its core, this is the story of John Davidson, a man from Scotland living with Tourette’s syndrome, told across a 50-year span of his life. The film starts with John as a child, where we meet him through the performance of Scott Ellis Watson—and let me tell you, this kid is something else. The moment he’s on screen, you can feel it. There’s a rawness and authenticity there that makes you sit up and pay attention. It’s the kind of performance where you immediately think, “Yeah, we’re going to be seeing a lot more of him.”

As the film moves forward, we watch John grow up and navigate life with Tourette’s—dealing with the physical tics, the emotional toll, and the way people around him respond. And that’s where the film really digs in. This isn’t only about John—it’s about his family, the people in his orbit, and how something like this affects everyone involved.

There’s a really important historical layer here too. At one point, Tourette’s syndrome wasn’t even widely recognized, and people misunderstood it completely. Some assumed it was attention-seeking behavior, which adds another level of frustration and isolation to John’s experience. The film walks you through that evolution—how awareness slowly grows, and how John becomes part of that change by helping educate others.

What I appreciated most is how the film handles that education. It never feels like it’s talking at you. It doesn’t stop the story to explain things. Instead, it pulls you in so naturally that by the end, you realize how much you’ve learned without ever feeling like you were in a classroom. That’s not easy to pull off, but this film does it really well.

The pacing is another big win. Covering 50 years could easily feel dragged out or uneven, but it never does. I was locked in the entire time. The story moves with purpose, and every stage of John’s life feels meaningful.

Then you get to the adult version of John, played by Robert Aramayo, who absolutely delivers. He brings depth and emotional weight to the role in a way that feels grounded and real. And then there’s Peter Mullan—who, yes, I’ve met once and will save that story for another day—but come on, he’s basically Scottish royalty at this point. He does what he always does: shows up and elevates everything around him.

At the end of the day, this film works because of its performances and its storytelling. It’s thoughtful, engaging, and impactful without ever feeling heavy-handed.

I’m giving I Swear a solid 4 out of 5 stars.

It’s a must-watch for the storytelling alone—but the performances are what really take it over the top. Catch it in theaters starting April 24, or keep an eye out for it when it hits streaming.