Turns out Ben isn’t the only Affleck brother interested in directing. The Hollywood Reporter announced that Casey Affleck has signed on to direct a documentary about Joaquin Phoenix’s career change from actor to rapper.

Phoenix is embarking on a new path as a rapper, with an album to be produced by Sean Combs. He is scheduled to make his first public performance Friday at a Las Vegas club, which will officially kick off Affleck's shoot.

Affleck’s previous directing experience includes a series of shorts for Sundance Channel. For the full story, click here.