Slogan is a 1969 French satirical romantic comedy-drama film co-written and directed by Pierre Grimblat.

[1][2] Serge Fabergé is a 40-year-old director who leaves his pregnant wife Françoise to attend an advertising award festival in Venice.

[3] Grimblat was nominated for an award in Venice for a Renault advert, and because nobody knew what he looked like, he asked Serge Gainsbourg to pretend he was Grimblat and collect the award, so that he could film the ceremony and use the footage in Slogan.

Pierre Grimblat decides to change the course of things by inviting them to a dinner, to which he had planned not to come (by playing double or quits in a way).

Without a witness at this meal, Gainsbourg and Birkin finally reconciled and began their relationship”.