This will be the next film from Paul Thomas Anderson, the director of There Will Be Blood and Punch-Drunk Love. The plot synopsis says that "this story stars Academy Award winner Philip Seymour Hoffman and Academy Award-nominee Joaquin Phoenix. Set in America in the years following World War II, a charismatic intellectual (Hoffman) launches a faith-based organization and taps a young drifter (Phoenix) as his right-hand man. But as the faith begins to gain a fervent following, the onetime vagabond finds himself questioning the belief system he has embraced, and his mentor."
Besides Hoffman (Doubt, Charlie Wilson's War, Capote) and Phoenix (Walk the Line, We Own the Night, The Yards), the considerable cast also includes Amy Adams (Enchanted, Doubt, The Fighter), Laura Dern (Tenderness, Recount), Rami Malek (Snafu from HBO's The Pacific), Jesse Plemons (Landry from Friday Night Lights), Kevin J. O'Connor (There Will Be Blood) and W. Earl Brown (Dan Dority from HBO's Deadwood).