Sam Shepard, Michael Shannon and Sarah Paulson have joined the cast of Jeff Nichols’ coming-of-age drama “Mud,” the writer-director’s first pic after “Take Shelter,” joining the previously announced Matthew McConaughey, Reese Witherspoon and Tye Sheridan.

Shooting began Monday in Arkansas. Ray McKinnon, Joe Don Baker and Paul Sparks have also joined the cast.

Sarah Green is producing, along with Everest Entertainment topper Lisa Maria Falcone and FilmNation’s Aaron Ryder. Glen Basner is exec producing for FilmNation, which is selling “Mud” internationally.

FilmNation and CAA are handling U.S. sales.

“Mud” centers around two 14-year-old boys who encounter a mysterious fugitive hiding out on an island in the Mississippi. Intrigued, they enter into a pact to help him evade capture and reconnect with the love of his life.

Shepard will play a reclusive character and Shannon will portray the uncle of one of the boys while Paulson and McKinnon will play the parents of the other.

Shannon starred in “Take Shelter” and worked together on Nichols’ debut feature “Shotgun Stories.”

Everest Entertainment produced “127 Hours” and “Win Win.” FilmNation handled international sales for “Take Shelter” and recently completed “House at the End of the Street” and “The Raven.”