Ian McKellen as Jimmy Irskine in his new film The Critic
Few actors working together fit the title of “national treasure” quite like Sir Ian McKellen. Ask anyone you encounter for their feelings on the six-time Olivier winner, and the chances are they’ll point you to at least one of his virtues, whether that be his celebrated charity work, his decades-long campaigning for LGBTQ+ rights, his famously tireless work ethic or his Oscar-nominated performance as one of 21st century cinema’s all-round...