Casey Affleck and Matthias Schoenaerts to Explore the Beauty and Majesty of the American Wilderness for HBO’s Lewis and Clark

Photo: Alberto E. Rodriguez/Getty Images and Dimitrios Kambouris/Getty Images

Tom Hanks, Brad Pitt, and Edward Norton decided they wanted to make a miniseries about Lewis and Clark, and now they've gotten HBO to green-light it. Based on Stephen Ambrose's Undaunted Courage, the six-hour miniseries will star Casey Affleck as melancholic explorer Meriwether Lewis and Belgian actor Matthias Schoenaerts (Rust and Bone) as the rough-and-tumble soldier William Clark. No word yet on who's playing Sacagawea; fingers crossed it won't be Rooney Mara.