Michaela Coel and Ian McKellen in 'The Christophers.' Courtesy of TIFF Share on Facebook Share on X Share to Flipboard Send an Email Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Print the Article Post a Comment Shake the family trees of many celebrated artists nearing the end of their lives and you're likely to find at least one heir plotting how to keep the cash cow going postmortem, in the meantime guiding arthritic hands to sign every last doodle that might be worth something.