A requirement may be an ethics and compliance safety that every business or job is mandating to know whether individuals that they are planning to hire fits the job that they need in the work.
A filmmaker is just what the word implies: someone who makes films. Most likely they are involved with every aspect of filmmaking - directing, producing, writing, filming, and editing.
One requirement of obtaining a small business loan is that you have a prepared business plan. A plan entails detailed projections of earnings and expenses for the next five years.