Le Distrait

Le Distrait English Absentminded, alternative English title The Daydreamer is a 1970 French comedy film directed by Pierre Richard, starring Pierre Richard, MarieChristine Barrault and Bernard Blier.

Pierre Malaquet is a creative, zany and incredibly scatterbrained young man, not of this world, always getting into comic situations. He is hired to a big advertising agency Jerico on his mothers recommendation. Full of bizarre advertising ideas, he meddles in other peoples business and tries to remake everything in his own manner. His commercials resemble horror films themes of death and violence seem to amuse him, black humor is present in all of his works. He is convinced that shocking ads are the most effective. His actions annoy his coworkers, but to their great surprise, the strict boss Mr. Guiton forgives him for all his tricks all because he is secretly involved with Malaquets mother Glycia.At the office Pierre makes friends with Lisa Gastier, Guitons young and charming secretary. She turns out to be a daughter of one of the most important clients of the agency. Pierre is sent to bring an important contract to his office for signing. As usual, Pierre confuses everything and instead of going to the office he goes to Gastiers house, where there is a party in a full swing. There he becomes a center of attention because of his odd behavior. A younger daughter of Gastier, Veronique, intends to give him a little lesson, but finds herself in an awkward situation as a result. Mr. Gastier, who waited in vain for Pierre in his office, returns home and when he finds Pierre there, becomes furious and throws him out of the house. ........

Source: Wikipedia