14 Movie Moments Where Actors Weren't Acting

List Rules
Vote up the honest reactions that created classic movie moments.

There's a lot that can go wrong on a movie set. Actors are professionals, but they're still human beings. At times, real actor reactions, such as fear, pain, or nervousness, work their way into a scene. Although these performers work hard to entrench themselves in their characters, their real personalities occasionally manage to shine through. 

Even though these actors are technically breaking character, that's not always a bad thing. In fact, certain movie scenes are specifically staged to elicit the most natural response. Fully embracing a role has its advantages, but sometimes only the real actor reactions provide the genuine impact a scene needs.

Take a look below at memorable movie moments where actors weren't acting, and vote up the times when an honest reaction made the movie that much better.