For movies as big as the ones that come out of Disney, writers spend countless hours pouring over every detail of their scripts to make sure every moment is the best it can be. However, the truth is, when the actors get on set or in the recording booth the script can sometimes go out the window as the stars choose to improvise, ad-lib or just go crazy with the character. Often times, these unplanned moments are scrapped but in some cases these happy accidents end up creating some of the most amazing moments in the film. Here is our list of 10 Amazing Disney Movie Moments That Happened By Accident.