Movie adaptations of theatrical productions have always been popular among viewers, though they have had a sudden increase in popularity since the end of 2012, when the highly anticipated Les Misérables movie was released. It was both a critical and commercial success which has led to other famous shows, such as Miss Saigon and Wicked, being considered for a movie version. In juxtaposition with this are movies that have had stage shows created from them, such as ‘The 39 Steps’ (1915) and Ghost (1990), the latter being turned into a musical from a non-musical movie. Many productions undergo changes when transferred from stage to screen, and vice versa, for various reasons, and these changes can alter the audience’s interpretation, and even their reaction. These changes aren’t always good, but neither are they bad, and different audiences react differently to them. So, what are these major changes that are made for the silver screen and the stage, and why are they felt to be necessary?