Jean-Luc Godard had been curious about making a big budget production. He later confessed that he hated making the film.
The seventh most successful film in 1963 at the French box office; a disappointment for Brigitte Bardot, but it was Jean-Luc Godard's biggest commercial success.
Fritz Lang was 73 when he made the film. One of the reasons why he hadn't directed in some years - his last film was El diabólico Dr. Mabuse (1960) - was because he was virtually blind at this stage in his life.
Filming was frequently interrupted by chasing off members of the paparazzi who were desperate to take photos of Brigitte Bardot, then one of the biggest stars in the world.
Originally, Jean-Luc Godard wanted to have Kim Novak and Frank Sinatra as the two leads, but both actors turned it down. Producer Carlo Ponti suggested his wife Sophia Loren with her frequent co-star Marcello Mastroianni, but Godard turned down that idea.