Never knowingly underrated - his was the sole photographic contribution to a recent Phaidon book about art history - Canadian photographer Jeff Wall is best known for his imposingly large colour transparencies that evoke scenes from unmade films. For his first UK show since a 2005 Tate retrospective, Wall has filled the lower half of the White Cube in Mason's Yard, SW1 with a selection of his lesser-known black and white photos. Drained of......