BuzzFeed News spoke to Dylan Marron, who’s highlighting Hollywood’s problem with people of colour.

It was founded by actor, writer, and director Dylan Marron, who is best known for voicing Carlos on the popular podcast Welcome to Night Vale.

The entire Harry Potter film series is over 20 hours long, yet people of colour speak within it for an average of 28.33 seconds each.

In Harry Potter and the Philosopher’s Stone (2001), there are only four speaking parts for people of colour, making up 99 seconds of the entire movie.