In his 1980 film, “Sauve Qui Peut (La Vie),” a masterful and melancholic study of sex and romance, Jean-Luc Godard fell in love with slow motion: reducing his film speed frame by frame, he extended moments of flickering, rapid movement—a character flying down the street on a bicycle, or leaping over a table to tackle a lover—to an almost abstracted stillness, turning actions into objects, verbs into nouns. The technique was so essential to “Sauve Qui Peut (La Vie)” that, when it was released in the United Kingdom, it was given the title “Slow Motion.” (The U.S. title, “Every Man for Himself,” is translated from the French. ) “You use slow motion in a way I find unusual,” Dick Cavett told Godard when the auteur appeared on Cavett’s talk show to promote the film. “How would it have been any different if you had just decided to have that at the normal speed?” “This is precisely the point,” Godard replied, chain-smoking in a tweed sport coat and tinted glasses. He relied on slow motion, he added, “when, at the normal speed, it was not possible to see things—or at least to indicate possibility . . . that there is something different to be seen.”