Believe it or not, some of the all-time most memorable lines of movie dialogue were completely unscripted. In fact, they often just randomly came to the actor or actress in question. And producers thought the ad-libs were so good that they ended up keeping it. In all of the cases we present here, keeping the unscripted dialogue was a smart choice. All of these improvised movie lines became iconic, and made their films truly epic.
1 of 25