Oscar nominee Joaquin Phoenix is in talks to star in WITHOUT REMORSE, the latest Tom Clancy book to be made into a film.

The WALK THE LINE star will play John Clark, a former Navy Seal and Vietnam veteran who returns to Vietnam to rescue American soldiers who were presumed to be killed in action, but are actually prisoners of war.

The character has also featured in other Clancy films, Clear and Present Danger and The Sum Of All Fears and was played by Willem Dafoe (corr) and Liev Schreiber (corr), respectively.

Author Tom Clancy had previously stated that he favoured actor Tom Selleck for the lead role, but admits the former MAGNUM PI star might be a little old to play the part now and favours Phoenix.

Paramount Pictures is looking to develop a series of films based on Clark's character, according to film website moviehole.net.