A major difference of cross-species romance between China and the US, as far as I am concerned, is whether or not does it involve with sexual matters. See, domestic film Mermaid definitely failed to explain that issue. To be clean and honest, I was wondering how on earth would the protagonist have intercourse with a lady fish, and felt cheated later by the simple, perfunctory idea as platonic love. On the contrary, Bicentennial Man, more or less influenced by the cultural background, did not avoid sex. The break in of the topic had been a bit awkward, but meanwhile acceptable. I personally like the embarrassment.