I've read the first two volumes of Buddha, Osamu Tezuka's eight-volume epic on the life of Siddhartha. This is more like an action film than a biography, and uses a historical fiction framework to help us see the future spiritual leader as a child, a husband, and conflicted man destined for greatness -- even if neither he nor his family can understand how.
The graphic treatment is like manga meets Will Eisner, and Tezuka even draws himself into the comics at points. Violence and death compete with humor, anachronistic dialogue, and some transcendantly beautiful panels to tell a spiritual story from thousands of years ago.
I look forward to slowly buying and reading the next six volumes. Tezuka Tezuka