Filmmaking is a massive process involving hundreds of people, endless takes, and countless moving parts. With so much happening on set, mistakes are almost inevitable. Normally, those errors are caught and removed during editing, but sometimes they slip through the cracks and end up in the final version of the film. In a few cases, directors even decided to keep the mistake because it added authenticity, humor, or an unexpectedly memorable moment. Here are ten times a mistake made it all the way into a movie’s final cut.

Spider-Man (2002) – Uncle Ben’s Photograph
In one shot, Uncle Ben’s photo changes size slightly between cuts. The continuity error was left untouched because it’s barely noticeable.

Star Trek (2009) – Scotty’s Jump Scene
When Scotty jumps to avoid an explosion, a visible stunt cable can be seen in the background. The filmmakers decided it didn’t distract from the scene’s excitement.

The Revenant – Bear Attack Scene
Leonardo DiCaprio’s reaction doesn’t perfectly match the stunt bear’s timing in one shot. The mismatch was kept to maintain the intensity and realism of the sequence.