La traversée de Paris aka Four Bags Full (1956)

Jean Gabin plays artist Grandgil






La traversée de Paris on IMDB

In Paris in 1942, under German occupation, unemployed taxi-driver Marcel Martin makes his living delivering parcels by night for the black market. One evening he must carry by foot, to the other side of the capital, four suitcases containing pork meat. He goes to the basement of a grocer named Jambier and plays the accordion to mask the noise while the animal is slaughtered. Martin then goes with his wife Mariette to the restaurant where he must meet his accomplice, but learns that the man has been arrested by the police.

A stranger then enters the restaurant and, after a misunderstanding, Martin invites him to share his meal and replace his former accomplice. This decision quickly turns out calamitous as the new character, named Grandgil, isn't very co-operative. He first asks for a drastic increase in payment, terrorizing the unfortunate grocer Jambier. Then, taking a dislike to the owners of a bar where the two hide with their suitcases of fresh meat to avoid policemen checking papers, he starts wrecking the place. Outside again, when they are stopped by a lone policeman, he head butts the man to the ground. When two more policeman approach, he starts talking loudly in German and they discreetly withdraw.

The two drop into the hotel where Martin lives with his wife and Grandgil makes a quick phone call, again speaking in German. An air raid begins, and the two take refuge in what turns out to be Grangil's apartment. Martin is stunned to discover that his companion is in fact a world-famous painter, who has agreed to come along mainly for his own entertainment and insists on returning the money he extorted.
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Marcel Martin and Grangil's in his art studio

A shot of Grandgil's table in his art studio from the trailer