Now he's visiting the US for the first time, speaking about his art and what it took to make it as a socio-political documentary filmmaker, first under the Shah then under Islamic rule.
Shirdel, 75, began filming poor and working-class Iranians in the 1960s. Early documentaries such as "Women's Quarter" established Shirdel as an uncompromising artist and got him fired from a job in the Shah's Ministry of Culture.
Educated in Italy under such legendary filmmakers as Roberto Rossellini and Pier Paolo Pasolini, Shirdel worked as an assistant on John Huston's epic film "The Bible."
Although he could have made his career working abroad, he said he couldn't forget "the harsh reality of life" among Tehran's poor and returned home and produced work that in spirit resembled documentary rabble-rousers such as US filmmaker Michael Moore.