British actor Gary Oldman has been officially added to the cast of "Rain Fall," an action/suspense movie based on a series of novels by Barry Eisler. It was first revealed by Variety last month that Oldman was in negotiations for the role.

The film stars Kippei Shiina as the protagonist John Rain, a half-Japanese, half-American assassin who once was part of the U.S. military. Now forced to protect a woman from being killed by the CIA, he faces off against one of the organization's agents (played by Oldman).

Max Mannix is writing and directing. Filming starts in Japan later this month, with the movie scheduled for release during Golden Week of 2009.