The Moment: When The Joker's main squeeze Harley Quinn is revealed for the first time in her signature regalia. When It Will Happen: Likely at the end of the first act, when she's inducted into the Suicide Squad and allowed to suit up appropriately. Why It Will Define The Movie: Because Harley's sexy attire is such an integral part of her character that the fanboys won't be happy if they don't get it right. Considering that a Joker image has already been released with shooting only underway for a few weeks, expect a brief glimpse of Harley to come in the following weeks. Robbie's an excellent choice to hopefully do the character justice, as long as the costume department does their job too.