1. The Wolf and the Buffalo by Elmer Kelton (What Larry McMurtry wishes he were after shooting his wad on Lonesome Dove — a great book, but Larry's lost it — Kelton is a REAL West Texan.
2. Lord Grizzly by Frederick Manfred — this would be riveting, but quiet. Based on Hugh Glass the greatest of the mountain men. This would make Jeremiah Johnson seem tame and - gulp -- revisionist by comparison.
3. Snow Treasure by Marie McSwigan. I loved this book as a boy and bought it for my son. Peter and his friends sled Norway’s gold right under the noses of the Nazis. War, bad Nazis, and heroic boys doing men’s work. This would be B.O. gold. I cannot stress enough how much I loved this book.
4. TR: The Last Romantic by H.W. Brands… Teddy Roosevelt really needs a biopic or an HBO miniseries a la John Adams.
5. In the Presence of Mine Enemies by Capt. Howard Rutledge. Harrowing autobiography of Rutledge and his 8 years in the Hanoi Hilton (1965-1973). He rediscovered his faith in Hanoi. In the midst of his torment and torture (today's Gitmo naysayers should read this) he remembers the hymns of his youth and scriptures come back to him little by little. Christ -- the Comforter -- really comes to him. It's out of print I believe, but here's the Amazon link and a jpg of the cover.
Others I'd like to see...
6. Augustine's Confessions -- also could make a great biopic.
7. Boethius' Consolation of Philosophy. OK -- maybe just a biopic of Boethius with the Consolation as a backdrop, etc.
8. Anonymous... Life of King Alfred the Great, education, Vikings, and burned cakes....
9. Song of Roland -- could have extra gravitas given our current struggles.
10. The Book of Nehemiah -- under-read book of the Old Testament. Nehemiah risks it all to ask the King of Persia for a "favor" and to rebuild walls of Jerusalem. In today's biblically illiterate age (and that's just even as literature, not to mention the Truth) this might not sell, but it could be a great movie.