actors messing up on Instagram: "Behind the scenes of Bullet Train, the cast constantly derails intense action scenes with nonstop laughter, missed punches, and improvised jokes. Brad Pitt breaks character the moment a stunt goes sideways, while Aaron Taylor-Johnson and Brian Tyree Henry can’t keep straight faces during their banter-heavy sequences. Even the deadliest scenes end in bloopers. Stunt resets turn chaotic when props slip, timing falls apart, or someone cracks a joke mid-take. The hig