John Woo will direct comicbook adaptation “Caliber,” to be unveiled at next week’s Comic-Con in San Diego.

Pic looks likely to be a three-way co-production of Johnny Depp’s Infinitum Nihil, Barry Levine’s Radical Comics and Lion Rock, the U.S.-based shingle that Woo runs with longstanding partner Terence Chang.

Radical Comics’ hit story sets King Arthur and his knights as 19th century gunslingers in the Pacific Northwest.

“Caliber” is unlikely to be Woo’s next pic. He is editing part two of his epic “Red Cliff” for a January release in Asia and will deliver an international version shortly thereafter.

Part one of “Red Cliff” opened July 10 in six Asian territories and scored a $26 million weekend.

Woo previously announced that he will helm Lion Rock’s $40 million pic “1949,” a period romancer set against the tumultuous background of the Chinese Revolution. Production is skedded after completion of “Red Cliff” and is now casting.

Woo’s other Stateside projects include a remake of 1969 French crime drama “The Sicilian Clan,” which starred Alain Delon and Lino Ventura, and “The Divide,” the story of a Chinese laborer working on America’s transcontinental railroads in the 19th century.

Comic-Con runs July 24-27.