"San Francisco School of Digital Filmmaking, also known as SFSDF for short, is a vocational film school in San Francisco, California. The school was founded by Stephen Kopels and Jeremiah Birnbaum in 2005 and works in conjunction with Fog City Productions, a local independent production company, to teach students the craft of filmmaking. The programs include five-week filmmaking courses, acting and screenwriting workshops, and one-year programs."