Stanley Kubrick script ‘The Downslope,’ on the Civil War, developed as trilogy by Marc Forster

NEW YORK, N.Y. – An old screenplay by Stanley Kubrick is being developed as a trilogy by “World War Z” director Marc Forster.

Kubrick’s script for “The Downslope” was written in 1956 shortly before he made his 1957 World War I film “Paths of Glory.” It’s also an anti-war story but one about the battles in Virginia’s Shenandoah Valley during the Civil War.

Kubrick first developed the film with Civil War historian Shelby Foote. Producers say Kubrick’s copious notes contain hundreds of maps and sketches.

Producers Lauren Selig, Barry Levin and Renee Wolfe said Monday their plans have the support of the Kubrick family. Steven Spielberg memorably turned a Kubrick script into 2001’s “A.I.” after the filmmaker’s death in 1999.

The planned trilogy will expand beyond Kubrick’s original story.