Thesps play members of a criminally inclined group whose amateurish heist grinds to a halt when their getaway car becomes stuck in a monster traffic jam.

Pic produced by Christophe Mazodier's French shingle Polaris and co-produced by Delpy was written and will be directed by first-time helmer Philippe Rouquier.

Principal photography is slated to start in January, after Delpy has finished shooting her sophomore pic "The Countess."

Polaris produced Delpy's recent Berlin hit "Two Days in Paris," which began its international theatrical rollout in Germany on Wednesdayit's set for an August U.S. release.

Delpy will be coming to the Croisette for a junket to promote the culture clash rom-com, which was snapped up by distribs worldwide. The only territories still on the market are Peru, Bolivia and Ecuador.

"The Last Mile" is the newest addition to a the titles being sold by Rezo, making its mark in Cannes this year with some six films across the fest's various selections, including Alexander Sokurov's competition pic "Alexandra," and with Eric Rohmer's "The Romance of Astrea and Celadon," which is probably bound for Venice.

Rezo has two more films in the official selection, Volker Schlondorf's out of competition, Kazakhstan-shot "Ulzhan," and Lola Doillon's Un Certain Regard selected helming debut "Just About Love?," a teenage comedy produced by Cedric Klapisch's Ce Qui Me Meut Prods.

Company is also handling two first films in Critics' Week, the Gallic historical actioner "Horse Thieves" and the Spanish pic "Yo."

A recent pick-up is "13m2," which will be screen in the Cannes market, about a gang of young robbers who are forced into hiding in a cramped bunker where nerves begin to fray. Pic is directing debut of French newcomer Barthelemy Grossmann, who also stars; it co-stars Berenice Bejo, seen recently in the hit comedy "OSS 117: Cairo Nest of Spies."