In Steven Soderbergh’s dark comedy, Ian McKellen turns in one of his finest performances, said David Sexton in The New Statesman. He plays Julian Sklar, a once-brilliant painter who hasn’t produced anything for years. A “vain, irascible wreck of a man”, he lives in adjacent townhouses in Bloomsbury, and fills his time by appearing as a “sarcastic” judge on a brutal TV talent show and selling appearances on Cameo. His artistic reputation relies o…