Longwave (2013)

This French film takes us back to 1974, when two Swiss journalists are sent to Portugal to report on the benefits of Swiss aid in the country. Only, err, they sort of find out there really aren't any benefits at all, and almost abandon the project before the Carnation Revolution begins. With the help of audio man Bob and a male translator, everyone begins to shed their inhibitions... and their clothes! Valérie Donzelli plays one of the journalists who goes fully nude when she bathes in a lake, and then topless during a sexy lesbian makeout with Patrícia André!