Actress and Producer Margot Robbie, who stars as Harley Quinn in DC Films, has urged her fellow cast and crew members to always work towards their director’s vision. Robbie stated, “The most important thing as a producer is it’s your job when you pick your director to stand by your director. You can’t stand by your director and second guess everything. There are time when you step in and debate a certain situation. You don’t want to leave any stone unturned.