HBO has officially greenlit Lewis and Clark, a six-hour miniseries that will chronicle the pair's exploration of the Louisiana Purchase. Starring Casey Affleck as Meriwether Lewis and Matthias Schoenaerts as William Clark, Lewis and Clark has even bigger names serving as executive producers. Tom Hanks, Brad Pitt, and Edward Norton are among seven people backing the miniseries. It's based on the book Undaunted Courage by Stephen Ambrose, who also wrote Band of Brothers — another project Hanks famously helped bring to HBO in collaboration with Steven Spielberg.
http://www.theverge.com/2015/1/30/7954041/hbo-lewis-and-clark-tom-hanks-brad-pitt-edward-norton-casey-affleck
I gotta say, I love the fact that HBO is dedicated to such productions. I am a sucker for them
Won't see it until next year, I bet, but it is something to look forward to.