It's not unusual for the great and the glamorous to be gracious and charming, but it's rare for them to be genuinely comfortable, warm and genial when conversing with a crowd.
Yet Sir Ian was all this at the weekend, and mischievously funny to boot.
His one-man Q&A and recitation show is a mutual love fest between actor and audience. On Saturday, the audience sang him Happy Birthday (a day late for his 72nd); after, he posed for pictures with fans.
Did he encounter any snobbery for starring in comic-book adaptation X-Men? "No, because the real snobs didn't know I'd done it," he quipped.
What did he think of Kiwi men? asked a male voice. "Stand up!" (subtext: let me look at you) came the challenge in reply.