Gene Kelly singin’ in the rain, which was half-water, half-milk so the camera could see it; Charlie Chaplin serving up his shoe, made of liquorice, in The Gold Rush; Leonardo DiCaprio and Kate Winslet on the prow of the Titanic in Mexico – this photographic tribute to 20th-century cinema includes synopses and behind the scenes facts as well as stills of 150 iconic moments.