Margot and Cathy were saying “Actually, we want to be able to touch him and kind of really interact with him.” because they wanted to build a relationship. It would begin by tracking in the CG model that they would have already created so that his movements matched the movements of our stand in German Shepherd. That was really important for us to get the performance from the real animal. 
Behind the Scenes with Margot Robbie & the Stand In German Shepherd for Bruce / Birds of Prey (2020) dir. Cathy Yan