Portraits of Women

Portraits of Women is a 1970 Finnish erotic comedy film written and directed by Jörn Donner. The film stars Donner himself as a pornographic film maker named Pertti who returns to Finland from the United States, having to work with miserably small budgets and with amateurish co-workers. The film was Donner's third consecutive film in which he himself played the male lead.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.