Disney’s live-action reworking of its 1937 classic ‘Snow White’; Robert De Niro plays two friends turned warring mob bosses in ‘The Alto Knights’; five stars for riveting Indian police procedural ‘Satosh’; François Ozon’s sly, subversive ‘When Autumn Falls’; Oscar-winning animal animation ‘Flow’; Cate Blanchett and Michael Fassbender in spy thriller ‘Black Bag’ — reviews by Jonathan Romney and Danny Leigh