Wearing was fascinated by Lindsey’s outspokenness and occasional bursts of violence, but when she sought to film her again two weeks later, she discovered she had died of cirrhosis of the liver. Over silent, slow-motion shots in grainy black and white of Lindsey chatting and drinking Tennent’s Super, with a cigarette tucked behind her ear, her sister’s voiceover recalls the grim facts of her death, its aftermath and the fractured family relationships that may have contributed to her descent into alcoholism. Prelude is the least playful of Wearing’s films but it does bring her themes, and the awkward problems of documentary, into sharp focus — not least the viewer’s own unease at witnessing a real person’s story, and in this case, a tragedy, becoming a work of art.