Ryan Phillippe is one, sexy photographer in his upcoming film The Bang Bang Club ... based on a true story.

In the action-packed flick, Phillippe plays a shutterbug who goes to South Africa to cover the first free elections in the post-Apartheid country.

Reese Witherspoon's ex stars alongside Taylor Kitsch and Malin Akerman. The Bang Bang Club hits theaters on April 22.

Find out which rapper will be co-starring with Phillippe in an upcoming project ... after the jump.