A second-unit director could also be in command of directing stunt sequences. Or a director may describe what he desires out of a scene and then have the film crew find the placement and lighting that work. To be employed as a Film Director, you need to have a portfolio of your film work. These days, many Directors even have a BA (and even an MA) from a movie school. However, within the film industry, the most important part of getting hired is proving you are able to do the job.
Directors should continually ask their crew members questions and empower others to come up with an answer. It’s their job to find a way of working that completes the movie on time and on budget. The more a Director understands movie history and theory, the easier it will be for them to create a cohesive vision.