Lazlo Nemes, the Hungarian filmmaker whose harrowing Holocaust drama “Son of Saul” won the Oscar for best international feature in 2016, is returning to WWII for his latest movie.

“Moulin” is set to tell the story of French Resistance hero Jean Moulin, and will be a French-language film starring Gilles Lellouche (“Tell No One”) and Lars Eidinger (“Clouds of Sils Maria”). The film will be introduced to buyers at this year’s Cannes Film Market, with Patrick Wachsberger’s 193 representing sales rights.

Based on true events, the story will follow Moulin (Lellouche) as he’s parachuted into occupied France to unite the French resistance fighters under Charles de Gaulle’s leadership. The film depicts how, despite all efforts to stay in the shadows, Moulin is ultimately betrayed and tortured at the hands of the ambitious head of the Gestapo in Lyon, Klaus Barbie (Eidinger). But even when locked in a tense,...