I saw a French film a in about 2004/5 and want to know what it is so I can get it. It is set in France and it is about a man who leaves the office to drop something off in the post office and by the time he gets back the office has closed and everyone has left to see the football match on tv. He is supposed to meet a girl in a pub but has to go to his boss' house first. So he gets a taxi out there and he left his wallet in the office hoping his boss would give him money. There is a big German Sheperd sitting in the passengers seat. he ends up getting chased around the city etc etc. Does anyone know what it is called?

Cheers.