I learned about slavery from Hollywood. Why is French cinema so slow to depict our own colonial crimes? | Rokhaya Diallo

A biopic of Frantz Fanon and other remarkable new movies are finding success via social media, yet remain invisible at the big film festivals

France's involvement in the transatlantic slave trade was historically among the most significant in Europe. After Britain, France had the second biggest colonial empire. We know that 1.38 million people were deported in at least 4,220 documented French slave trade expeditions. Yet the stories of the lives of those people are almost entirely absent from the French collective imagination.

Growing up in France, the only images of this crime against humanity I ever saw on screen were in US-made films. I learned about it from the 1970s TV series Roots and from Steven Spielberg's movie Amistad. Today in France, Hollywood films such as 12 Years a Slave or Django Unchained are still the references when it comes to depicting the horrors experienced by enslaved people.

Rokhaya Diallo is a Guardian Europe columnist