Gua Sha ――>Culture Conflict

This is the most successful movie reflecting culture differences I have ever seen, last night, Gong Xieyu, one of my classmates, told me after light-cut-off that he had watched a movie about a Chinese family living in America, Guasha, a Chinese traditional medical treatment exited for over thousands of years, become illegal when it comes to America, thus triggered a series of ridiculous law affairs.
The whole story started with grandpa giving Guasha to his grandson, after that, the kid was sent to hospital incidentally. In the hospital, doctors was shocked by the white red back which caused by Guasha, actually it's normal to have such kind of appearance after Guasha and no pains at all, but the doctors thought immediately that the kid was badly abused by his parents, and called the CWA (an agent for child protection) to sue that poor couple, because they though they have to obligation to save the kid from dark family with violence.
The father who in fact loves his son so much was pushed nearly crazy by the CWA lawyer, he couldn't take his son home, and if he couldn't prove that GuaSha is scientific and effect, he may never have the right to see his son again, that means that little kid have to spend his childhood in the children institution where mainly lives orphan. Finally the couple found a way to get their son back――they separate living, then the child could live with his mother. That was really tragic, the son misses the father, the father also love the son, but they can't meet, or they'll be punished by American law.
Eventually, the story ended as a comedy with the help of an American friend who went to China and experienced GuaSha in person.
In China, there's a saying: hit means love; the father hits his son because he loves him, and we'll hit our children if he did wrong things, especially when our sons harm others, we hit them to show our respect and apology. But Americans believe that we should never hit a child for no matter what reason. Sometimes, what we take for granted is right may become wrong when judged from other culture, respect may become insult, honor may become shame, natural may become unusual…Culture makes a significant part in international communication.