Sir Ian McKellen says he used a political reference to fuel his performance as Magneto in Marvel Studios’ upcoming film “Avengers: Doomsday.” Speaking in connection with a screening or appearance in Rome, McKellen described how directors Anthony and Joe Russo (the films’ directors are cited across reports) instructed him to look more furious during an action sequence in which Magneto appears to destroy something onscreen. According to McKellen, he responded by shouting “Mar-a-Lago,” a phrase he associates with Donald Trump’s Palm Beach, Florida resort. Multiple outlets report that the actor linked the outburst to the mood he was asked to convey—performing a character whose anger is central to the scene—while also making a joke about Trump. Reports characterize his remarks as a behind-the-scenes anecdote that blends the villain’s intensity with McKellen’s personal viewpoint. McKellen is 87 and is reprising Magneto, originally associated with the “X-Men” franchise, for “Avengers: Doomsday.”