Hugh Jackman has officially signed on to star in the Untitled Baz Luhrmann Project for 20th Century Fox.

When Russell Crowe dropped out last week, speculation grew who would join Nicole Kidman in the period epic; rumors had fellow Aussie Heath Ledger taking over. The film is an action-adventure set in northern Australia before World War II; it centers on an English aristocrat (Kidman) who inherits a ranch the size of Maryland. The Hollywood Reporter adds when English cattle barons plot to take her land, she reluctantly joins forces with a rough-hewn cattle driver (Jackman) to drive 2,000 head of cattle across the country's most unforgiving landscape, only to face the bombing of Darwin, Australia, by Japanese forces.

There's no production schedule for the Untitled Baz Luhrmann Project; filming will take place in Australia. A 2008 release has been set.