"Any good movie is filled with secrets. If a director doesn't leave anything unsaid, it's a lousy picture. If a picture's unsaid, it's a lousy picture. If a picture is good, it's mysterious, with things unsaid."

(Ernst Lubitsch, regista, sceneggiatore, produttore; Berlino, 28 gennaio 1892 – Los Angeles, 30 novembre 1947)