Warner Bros. has hired Mark Duplass and Jay Duplass (Jeff Who Lives at Home, Cyrus) to write the screenplay adaptation for Mule, which will be directed and produced by Todd Phillips.

The project is based on Tony D'Souza's novel, which follows a young couple who become marijuana "mules," transporting weed across the country for some fast cash. We first reported on this project back in February, which is one of four new films that Todd Phillips has set up at Warner Bros.

Todd Phillips will produce alongside Jamie Patricof, Lynette Howell, and Scott Budnick.

No production schedule was given.