Memento Films International has added Un Certain Regard title Wendy And Lucy to its sales slate.

The film, by Kelly Reichardt, stars Michelle Williams and Will Patton and is especially particular in that Cannes Festival chief Thierry Fremaux cited it as the one film that made its way into the official selection after being received, unsolicited, by post.

Wendy And Lucy will have its world premiere in Cannes. The film tells the tale of Wendy who, along with her dog Lucy, is driving to Alaska in the hopes of a lucrative summer job at a fish cannery.

Her car breaks down, however, in Oregon and she is faced with a series of increasingly dire economic decisions. According to Memento, the film addresses issues of sympathy and generosity at the fringes of American life and reveals the limits and depths of people's duty to one another in tough times.

Reichardt is best known for her previous film, Old Joy, which debuted in Sundance in 2006 and won the Tiger Award in Rotterdam the same year. The film is produced by Neil Kopp, Anish Savajani and Larry Fessenden.

Memento told Screen, 'We are very proud to represent such an inspired artist as Kelly Reichardt. We were already big fans of Old Joy but were even more impressed with Wendy And Lucy 's striking beauty and sensitivity; its delicate sound design and genuine looks and its deeply touching and poetic storytelling.'

Memento is also handling competition title The Class by Laurent Cantet and Critics' Week titles Home, by Ursula Meier and Grown Ups by Anna Novion.