With two writer parents, Arianne Phillips always understood the power that costume could have over storytelling. Today, Arianne is a three-time Oscar-nominated, twice BAFTA-nominated, and one-time Tony-nominated costume designer known for her sparkling career working on generation-defining films. Phillips herself is something of a talisman to various artists and filmmakers, from Tom Ford whose two films she worked on, to Madonna, with whom she’s collaborated for years. We spoke to her about the challenge of costuming Quentin Tarantino’s “Once Upon a Time in... Hollywood,” for which she was nominated for Best Costume Design at the 92nd Academy Awards and the 73rd British Academy Film Awards. Prior to that, in 2012 she earned an Oscar nomination in costume design for Madonna’s “W.E.” and a BAFTA nomination in 2010 for Tom Ford’s “A Single Man.” Her very first Oscar nomination was in 2006, for “Walk the Line.”