Movies
Rex Features
The story, a reinvention of the King Arthur legend, portrays the Knights of the Round Table as 19th century gunslingers in the Pacific Northwest.
The film will be produced by Johnny Depp's Infinitum Nihil company, Radical Comics and Woo's US production firm Lion Rock.
Caliber is unlikely to be Woo's next project, as he earlier agreed to helm 1949, a film about the communist takeover of China.
The next Woo film to reach cinemas will be two-part war epic Red Cliff.
Movie Reviews
'The Vow' reviewChanning Tatum tries to win back Rachel McAdams in romantic drama The Vow.
At the Movies
This Week's 5 Hottest Movie VideosTrailers for The Avengers and Spider-Man are among this week's highlights in film.
Movies Interviews
Daniel Radcliffe talks 'Woman in Black'The actor talks to Digital Spy about his first post-Potter outing.
Box Office Charts
'Chronicle' leads UK box officeSuperhero drama Chronicle leads the UK box office ahead of Journey 2.
