Movies are built on illusion, even though sometimes reality slips through in ways audiences never realize. Behind the polish of blockbuster scenes and dramatic performances, there are moments where actors were genuinely hurt, and the cameras kept rolling.
In some cases, those takes were so convincing, or too expensive to redo, so they ended up in the final cut. From broken bones to near-misses, these incidents blur the line between performance and real danger. They also reveal just how far productions are willing to go for authenticity, even when things don’t go according to plan. All that matters is: stay in character.

Leonardo DiCaprio, Django Unchained
DiCaprio smashed a glass and cut his hand mid-scene but stayed in character, continuing the take while bleeding, which was used in the final film.

Viggo Mortensen, The Lord of the Rings: The Two Towers
Mortensen broke two toes kicking a helmet in frustration, and his real scream of pain was kept in the scene.