You may write (minimum) detailing an interview you make with a working, professional filmmaker. You may conduct the interview in person, on the phone, or via e-mail, but you must provide the contact info for the person you interviewed. If you have no luck finding a source, try contacting instructors at larger film schools who make films. Try and have your questions prepared beforehand to make the interview go smoother. Ask them about their work, how they started, and what challenges they experience. You may include images or video links if desired.