South Korean actress Kim Hee-sun will star in Warring States (tentative title), a war epic set in China more than 2,000 years ago. It will also have mainland actor Sun Honglei.
Kim has not played in any film since 2007, the year she gave birth to her daughter.
While Chinese audiences know Kim from the South Korean TV dramas of the late 1990s, it was the 2005 film The Myth, starring her and Jackie Chan, that catapulted her to fame.
Recently, another South Korean actress Song Hye-kyo was dropped by mainland director Chen Kaige from one of his projects, for being "fussy."
Sun Jie, producer of Warring States, however, says Kim liked the script and made a quick decision to join.
The filming will start later this month.