No one figure in manga and animation is bigger than Osamu Tezuka; one of the 20th century’s most influential artists is getting his own documentary. Peabody Award-winning director Jason Andrew Cohnand Bread & Butter Films (Camille Servan-Schreiber, Jinko Gotoh, Glen S. Fukushima, and Roland Kelts) are making an in-depth look and celebration of Tezuka’s dozens…