Oh boy, this is a trick one, there are so many great films from foreign lands. One of my favorites is "Amelie", it is so surreal, beautiful, and funny. I hope this answers your question, it is a good one
If i say i'm born in america but india's my motherland and tell u my favorite indian film, would that be foreign? Or an american film?! Cause i dont really watch any other movie, maybe 2 or 3 from england.