The Internet is outraged because a white actor was cast as one of the most iconic Japanese roles, Major from Ghost in the Shell, an anime movie that has had a big impact on modern sci fi.
https://www.buzzfeed.com/ryanhatesthis/we-need-to-talk-about-ghost-in-the-shell#.lbvveo769
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I've always preferred staying as close to the source material as possible. However, I'm assuming this is an adaptation from anime to a live action film, in which case I've always thought the characters could go anyway because from what I've seen of anime, the characters always seem to be a mix of Asians and white people. In which case, I don't really care.