In a film filled with memorable visuals, the most powerful images in Guilty (Matthew Sleeth, 2017) have actually already been seen before. They aren’t the product of the film’s director, but rather of its subject: the now-executed convicted drug smuggler Myuran Sukumaran. Discovering his passion for painting during his incarceration, he made his mark on hundreds of canvases, crafting an array of self-portraits, representations of others and more abstract works. In the documentary, three stand out, all painted in the last hours before his death. One, Time Is Ticking, depicts his own likeness, with a concerned expression on his face and a gaping hole where his heart should be. Another, One Heart, One Feeling in Love, shows a bloody heart painted large in shades of crimson. A third re-creates the…