Ian McKellen is reprising his role as supervillain Magneto in the upcoming Marvel film “Avengers: Doomsday,” and this week, he recalled the moment he took a swipe at President Donald Trump while filming.

The taunt came while filming his character’s destruction of New Jersey, the “Lord of the Rings” star told “The Late Show” host Stephen Colbert.

“So I’m standing up, pretending to do that, and the wind is blowing in my hair, and I’m putting on a fierce look, and I’m trying to be magnetic,” McKellen remembered. “And the director, over the loudspeaker, says, ‘Ian, look more furious.’”

After being instructed to shout something, McKellen asked what it should be, only to be told: “Shout the worst thing you could possibly think of.”

With his arms outstretched, the actor boomed: “Mar-a-Lago.”

Colbert’s audience erupted in cheers over the revelation.

McKellen, who is no fan of Trump, sat down and wondered aloud: “Will I be allowed back in the country?”

“Will you be allowed back in the country? No guarantees,” Colbert, himself a fierce critic of the president, laughingly responded, adding, “I don’t think I’m the right person to ask for that.”

Watch the full interview here: