Some of the secondary music (like the theme we hear in the answer-phone, or the one we hear on the radio) are taken from The Tall Blond Man with One Black Shoe (1972).
This movie has a lot of references regarding James Bond movies: in his voice mail, Pierre Richard mentions he is possibly shooting a 007 movie with Roger Moore, the umbrella seller has British flags in his backstore, and Gert Frobe was the main villain in "Goldfinger", which is considered one of the best 007 movies by fans of the British Spy. Also Raj, the Baleine's bodyguard, is from East Asia, a reference to Goldfinger's OddJob, which was Asian as well, and the tricked umbrella, a reminiscence of all the killer gadgets found in Bond movies.