Bac Films is set to unveil “A Bun in the Oven,” a high-concept feel-good comedy toplining one of France’s biggest stars, Karin Viard (“Lolo”), as a middle-aged mother faced with an unexpected pregnancy.

Now filming, “Bun” marks the directorial debut of Nadege Loiseau, a well-known commercials director. Loiseau penned the script with Mazarine Pingeot. Viard stars opposite Helene Vincent (“Samba”), Antoine Bertrand (“Two Is a Family”), Philippe Rebbot (“Welcome to Argentina”).

Gilles Sousa, head of international sales for Bac Films, said “Bun in the Oven” had already triggered buyers’ interest and even various offers. “It’s a comedy in the spirit of ‘La Famille Belier’ or ‘Little Miss Sunshine’ – it’s funny, tender and heart-wrenching, and it also portrays a dysfunctional yet loving family that people will inevitably relate to,'” said Sousa.

Sylvie Pialat’s Les Films du Worso is producing. Although Pialat produces mostly auteur movies such as Oscar-nommed “Timbuktu” and Un Certain Regard winner “Stranger by the Lake,” she has an eye for comedy material: Her most recent hit, Guillaume Gallienne’s “Me, Myself and Mum,” scooped multiple nods at Directors’ Fortnight and won five Cesar awards, on top of being a commercial success in France and beyond.

Pialat said the movie will have the potential to play to a wide audiences and target diverse demos in France and international markets. “The character Viard (plays) is particularly endearing and we just want to root for her; she’s a strong-willed woman who had kids in her teens and she’s become the breadwinner of the family, so when she finds out she’s expecting her whole world and family gets rocked.”

Diaphana will release the movie in France.

At the AFM, Bac Films is hosting the market screening of Nicolas Saada’s “Taj Mahal” and continuing pre-sales on Paolo Virzi’s (Human Capital”) “Like Crazy” and David Verbeek’s “Full Contact” which premiered at Toronto’s competitive Platform section and has just won two nods at Chicago.