This commercial ran the day the conclave was announced by the Vatican for the election of the new pope.

The film opens outside St. Peter's Basilica in Rome. A large crowd is gathered, waiting expectantly as they all stare at the famous chimney on the chapel roof. A news reporter is commenting on the scene.

Cut to a close up of the chimney as it continues to pump out the black smoke signaling that no pope has yet been elected.

Suddenly a man appears on the chapel roof and starts tampering with the chimney. As he does so the smoke turns white. At this point we notice that he is in fact a Citroën engineer due to the big Citroën logo on the back of his overalls.

Voice over : Citroën . Working at reducing emissions