As far back as last April, George Takei, best known for playing Star Trek's Sulu, has been critical of the casting of non-Asian leads to the live-action Akira remake. Reacting to talk at the time that Robert Pattinson and Justin Timberlake would be the then Albert Hughes-directed project, he tweeted "Akira epic fail--all actors up for Kaneda & Tetsuo are white?" Later revisions that saw Jaume Collet-Sera take over as director and Garret Hedlund signed for the Kaneda role haven't made him any happier.
Takei spoke about the situation at Pacific Media Expo 2011:
via Comic Book Movie