We finally know how 'The Summer I Turned Pretty' star Christopher Briney broke his hand. 😮 After previously saying he would save the big reveal for closer to the release of his new movie, 'The Julia Set,' the actor tells EW that it happened when he punched a wall while filming a scene, which fans will be able to see on screen. #TIFF #TIFF2026 #ChristopherBriney