is a 2004 French comedy film, co-written, produced and directed by Alain Chabat.

It stars Maurice Barthélémy, Pierre-François Martin-Laval, Jean-Paul Rouve, Marina Foïs, Elise Larnicol, Alain Chabat, Pascal Vincent, Jean Rochefort and Gérard Depardieu.

35,000 years ago, in the Stone Age, two neighbouring tribes lived in peace.

The leader of the Dirty Hair tribe decides to send a spy to steal the recipe.

But a far more serious event would upset the life of Clean Hair tribe; for the first time in the history of humanity, a murder had been committed.