This image comes from a video from WarnerMedia’s (the parent company of Warner Bros. and DC) YouTube page talking about the company’s Diversity and Inclusion Report. It may seem like an odd place to get a new look at Birds of Prey, but we’ll take whatever we can get. In the image you see Birds of Prey director Cathy Yan working with actress Margot Robbie, whose Harley Quinn is in full roller derby getup.
Article source: https://www.cinemablend.com/news/2481157/new-birds-of-prey-footage-reveals-harley-at-a-roller-derby