The Chinese joke
While I accept there was no malice and offense intended, you really cannot evalute how a native Chinese person in China would react.
The Chinese have every right to be offended. What Westerners fail to understand about China and Chinese people is that they suffered a century of humiliation, the Forbidden Palace was looted, conceded Hong Kong, forced to take Opium... this was all when China was weak. Now that China is experiencing a revival, both economically and financially. They can and will be more assertive, geopolitically, etc.
So the Asian dude said what kind of knees are these? Chin-knees. Haha... ok... I thought the joke not offensive but stupid, but a Chinese person in China would think WTF? Chinese, knees? Dirty knees from kneeling? One hundred years of humuliation. WTF??
I understand it is not an American production, correct me if I am wrong, it's a joint, Chinese, German and Japanese production. The Chinese production company Tencent really dropped the ball here. They should have been assertive and spoken up about this since they know their home market. If I were one of the financiers of this film, I would be mad as F. There's a lot on the line here (millions), and they really are going to make a racially crude joke that *could* be taken in a bad way. NOTE to filmmakers, don't make any risky racial connotation jokes.
They deserve to lose the China market for being so stupid.