Bon Voyage (English: "Have A Good Trip") is a 2003 French film directed by Jean-Paul Rappeneau, starring Isabelle Adjani, Gérard Depardieu, Virginie Ledoyen and Grégori Derangère; it's very loosely inspired by Professor Lew Kowarski's smuggling of the world's only supplies of heavy water out of France following its occupation by the Nazis.

Upon arriving, he discovers a corpse, "accidentally" killed, which Viviane asks him to dispose of, claiming that the man had been harassing her and when she slapped him, he fell over the edge of the balcony.

He agrees to help her and the two pack the corpse into the trunk of his car; however, as it is raining, he accidentally drives into a curb and hits a police signalling device.

Camille, a physicist, works at the elite College de France under Professor Kopolski; the two of them are guarding French stocks of heavy water that they want to ship to England before the Germans can get their hands on it.

The remainder of the film traces the action-packed adventures of the characters, caught between two forces - the German invasion and Viviane's capacity for melodrama.

[4] Metacritic assigned the film a weighted average score of 68 out of 100, based on 30 critics, indicating "generally favourable reviews".