Film crew positions have evolved over the years, spurred by technological change, but many traditional jobs date from the early 20th century and are common across jurisdictions and filmmaking cultures.
Generally, a director controls a film's artistic and dramatic aspects and visualizes the screenplay (or script) while guiding the technical crew and actors in the fulfillment of that vision.
The director has a key role in choosing the cast members, production design, and the creative aspects of filmmaking.
Since the turn of the 21st century, several additional professionals are now routinely listed in the production credits on most major motion pictures.
Their main responsibility is to work closely with the electrical department to put in the non-electrical components of lighting set-ups required for a shot, such as flags, overheads, and bounces.
In addition to lifting heavy objects and setting rigging points for lights, they also report to the key grip.
This may include adding tracking markers, taking and asking for reference plates and helping the director understand the limitations and ease of certain shots that will effect the future post production.
It is also used to describe techniques such as storyboarding, either in the form of charcoal sketches or in digital technology, in the planning and conceptualization of film scenes.
In traditional animation, the nature of the medium meant that everything was literally flattened into the drawn lines and solid colors that became the characters, making nearly all live-action positions irrelevant.
They make artistic decisions strongly similar to those of their live-action counterparts, but implement them in a virtual space that exists only in software rather than on a physical set.