Artillery booms and flashes on the screen mingled with the real thing until they were almost indistinguishable: a celluloid depiction of the battle of El Alamein five months earlier was superimposed on tonight’s opening barrage of Eighth Army’s assault against the Mareth Line. But it was the film that held the men rapt. Churchill himself had sent this print of Desert Victory, a sixty-five-minute documentary that had become a worldwide propaganda sensation in the two weeks since its London premiere.