Girl and soldier (1970)

A young boxer and his girlfriend seem to be bored with the monotony of their dates, walks, and life. So he invents a girl with a romantic suitcase, with whom he supposedly fell in love, and she invents an equally romantic soldier, whom she supposedly likes. At the end of the film, when the lovers meet at the train station, they seem to have been transformed by the cross-pollination of dreams—he is a soldier, and she is leaving for somewhere, and, naturally, when she appears on the platform, she turns out to be the girl from his dreams with a suitcase in her hand.