All of us, at some point, have taken a camera, gathered our friends and tried to make a film. I remember doing this a lot in second grade. I still do it sometimes! Making a professional film is very different from a small homemade film. Amateur movies are shot in a home or in public, while a professional movie is made most of the time in a studio. Furthermore, professional films require a lot of lighting and editing, while home movies are usually shot without some professional editing and lighting. Finally, professional films require a lot of money, while home videos are usually not very expensive. The first is the phase called pre-production, before the film is actually made. This includes planning, budgeting and finding people. A rough script is initially created for the film. A screenplay is then created. A script is a step-by-step production of drawings that show the details of how the film will look and how things will happen. Once the script is made, the script is broken down, optimized and blocked for the final script. Now comes the planning to make the actual film...