La Classe Américaine is a 1993 French film created by Michel Hazanavicius and Dominique Mézéret by re-editing scenes from classic American movies and giving them entirely new French dialogue. The train line comes from that playful dubbing, where a suave hero answers provocation with studied indifference rather than anger. The film became a cult favourite in France, and its sharpest one-liners circulated long after broadcast through quotes, compilations and soundboards. Online, the clip survives because the metaphor is instantly understood even without the film, making it a ready-made reply to insults.