Here is some very obscure Big Hero 6 artwork. Each of us in the visual development team was given the chance to design a poster for Hiro’s room. I went immediately for the Akira tribute poster! This never made it into the film, the legal department said it was too similar to Akira. That’s what makes it a tribute! Akira is a true animation classic.
Metropolis is a 2001 anime film loosely based on the 1949 Metropolis manga created by the late Osamu Tezuka. The anime had an all-star production team, including renowned anime director Rintaro, Akira creator Katsuhiro Otomo as script writer, and animation by Madhouse Studios with conceptual support from Tezuka Productions. Metropolis [DVD]