The Data behind Hollywood's Sexism
https://www.ted.com/talks/stacy_smith_the_data_behind_hollywood_s_sexism

Where are all the women and girls in film? Social scientist Stacy Smith analyzes how the media underrepresents and portrays women -- and the potentially destructive effects those portrayals have on viewers. She shares hard data behind gender bias in Hollywood, where on-screen males outnumber females three to one (and behind-the-camera workers fare even worse.)