Katherine Waterston, Eddie Redmayne, Alison Sudol and Dan Fogler in a scene from "Fantastic Beasts and Where to Find Them." Juggling J.K. and the Jazz Age, costume genius and Oscar perennial Colleen Atwood won her fourth award for costume design&nbsp; on Friday night for "Fantastic&nbsp;Beasts and Where to Find Them."Amazingly, it was the first for a Rowling-based movie; none of the seven "Harry Potter" movies, which starred some of Britain's finest actors and swept millions into a magical world of witches and wizards, won an Oscar in any category.&nbsp;And though &nbsp;&ldquo;Fantastic Beasts and Where to Find Them,&rdquo; the Harry Potter prequel about a writer&rsquo;s adventures among witches and wizards, was &nbsp;awash in violence, xenophobia and political revolt, &nbsp;backstage in the press room Atwood was nothing if not calm and composed.Clutching her gold trophy, in a simple black dress, she surveyed the room from the small stage, answering questions with a slip of a smile on her face.But when it was brought to her attention that none of the Harry Potter films had &nbsp;won Oscars until now, she was &ldquo;shocked,&rdquo; she said. &ldquo;I didn&rsquo;t realize that &ndash; that&rsquo;s shocking! Because there&rsquo;s so much artistry in the Harry Potter movies. I think that maybe because this movie is set in the 1920s, which kind of keys off a different visual sense, might be the obvious [reason it won], but I can&rsquo;t believe it never won [before].&rdquo;&nbsp;And with that, as calmly as she appeared on stage, she exited, still clutching her trophy to her chest.