French apparel designer Agnes B., who has created poster campaigns and in-store promotions for some of the Cannes Film Festival’s best-known filmmakers, has formed a London-based production company with screenwriter-director Harmony Korine and will partly finance his next, as yet untitled production.

The company with Korine, O’Salvation!, is part of the designer’s expanding portfolio of film interests. She opened production company Love Streams in Paris in 1997; Nadja Romain runs the company for the designer.

Through Love Streams, Agnes B. has invested in such pics as Gaspar Noe’s “I Stand Alone” and Claire Denis’ “Trouble Every Day.” She oversaw the theatrical re-release of John Cassavetes’ “Love Streams” last year in France, and is financing documentaries about composer Philip Glass and photographer William Eggleston. She is one of the original sponsors of the Sarajevo Film Festival.

The first production by O’Salvation! is an untitled project written and directed by James Clauer, who was an associate producer of Korine’s controversial 1997 pic “Gummo.”

More than 100 Agnes B. shops have opened around the world since the first bowed in Paris in 1976. These boutiques have served as a showcase of the designer’s freewheeling interests in the arts. She runs a contemporary gallery in Paris and a performance space, “b. yourself,” in Tokyo.

Agnes B., who still designs every item in her shops, has also designed numerous film posters, including an Agnes B. line of posters for “Kill Bill” and “Bad Education.” On Monday, her Cannes shop was the site of a party for Pedro Almodovar’s “Bad Education.”

The designer said Clauer’s project will begin shooting soon in Tennessee. She expects Korine’s film will be completed in the next few months.

Korine, who has kept a low profile since 1999’s “Julien Donkey-Boy,” surfaced in London last year to direct a documentary about David Blaine that aired on the BBC after the magician spent 44 days suspended in a box without food over the Thames. The label on the outfit Blaine wore in the box was Agnes B.