There's a extremely minor character in Iron Man 3 named Doctor Wu played by Chinese actor Wang Xueqi (Who's a household name in China, but unknown in the United States). So far, so good. I didn't get to the actual four minute China-only Subplot though. He's watching Iron Man fighting against Middle Eastern English (His family originated from India) actor Ben Kingsley as the Mandarin on television. For the United States, that's pretty much it. In China, it's much longer. You see, there's a reason why this pointless sequence of an expensive Chinese born actor is watching television and pretty much doing nothing else is in the film at all in the first place.
Surrounded by Chinese Children, Iron Man is tired and exhausted. Doctor Wu said, "Tony doesn't have to do this alone—China can help." And that's where Doctor Wu cures Iron Man of his exhaustion by pouring him a glass of a Chinese milk brand named Yili. Yes, Doctor Wu just happened to be carrying a glass and a chilled bottle of Yili milk around with him everywhere he goes in the streets of Communist China. Iron Man drinks Yili milk and is ready to fight Mandarin. But before flying off, Doctor Wu offers to remove the shrapnel from his heart, remove the pacemaker from his heart and cure him of his cyborg disease. Doctor Wu agrees to perform the needed surgery because China is the first place to go for first rate cardiovascular surgery.Chinese actress Fan Bingbing (She's a household name in China, but again an unknown obscurity in the United States) enters Doctor Wu's office to tell him that Tony Stark is here. Fan Binbbing only appears in this scene and her character doesn't have a name. But she appears to be Doctor Wu's sidekick in cardiovascular surgery.
Oh yes, Fan Bingbing also plays Clarice Ferguson aka Blink in the upcoming Marvel Comics super-hero film X-Men: Days of Future Past.