To add to Angel's list of films featuring Asian-American romances: you
might check out SAYONARA, which was quite scathing about U.S. hypocrisy
in its antifraternalization policy. GOOD MORNING, VIETNAM included a hint
of a romance that had political implications and that was certainly
marked by differing expectations in terms of culture and language. Those
two are all that come to mind at the moment.
 
Cheers,
Sandy (University of Missouri)