PARIS — Leading French producer Philippe Carcassonne has boarded U.S. screenwriter Janet Dulin Jones’ adaptation of Henry James’ novel “The Ambassadors.”

The $15 million pic, set at the start of the 20th century, follows Lambert Strether, the editor-in-chief of a Boston magazine who embarks on a life-changing journey to Paris to bring home his fiancee’s rebellious son.

Carcassonne, whose credits include “Un Coeur en Hiver,” “Ridicule” and “Coco Before Chanel,” will produce through his Paris-based shingle Cine@, alongside Julia Taylor-Stanley’s London outfit Artemis Films and Jones’ shingle Storyteller Films.

The pic will boast an international cast of French, British and American thesps.

The producers are seeking an English-speaking director. Jones says she hopes the pic will start to lense next fall in Paris.

Jones, who previously co-penned Gena Rowlands starrer “What If God Were the Sun,” finalized her script and met Carcassonne while attending Autumn Stories, the scribe residence program set up by the Ile de France Film Commission.

“It’s my first foray into European production, so this residence program was key in pointing me in the right directions,” she said.

Another Autumn Stories alumni, Jeremy Leven, also found partners through the program — France’s Elzevir Films (“Home”) and Germany’s Wiedemann & Berg (“The Lives of Others”) — to produce his comedy “Girl on a Bicycle,” which shot this summer in Paris.

This year’s Autumn Stories screenwriters are: John Brian King (“Cold Case”) with “Hotel Stendhal,” a psychological thriller turning on two American girls on a fatal trip to Paris; Rusty Lemorande with “The Magic Man,” a period fantasy/drama about an American magician who comes to practice in Paris during the time of illusionist Jean Eugene Robert-Houdin; Danielle Wolff with “Danielle Casanova,” a biopic of a Corsican woman who sacrificed herself to fight for justice during the Holocaust; and Cynthia Riddle with “Curtains,” which centers on Parisian stage actress Sarah Bernhardt’s tormented friendship with fellow thesp Marie Colombier. Producer Julia Verdin (“The Merchant of Venice”) has come on board to produce “Curtains” and is looking for a European co-production partner.