Chinese Film fans - Identify a chinese film please...?

[ThePFM]

Any help greaty appreciated - it's about a younger woman who moves to the West and meets an older man and his younger brother. They start up a chinese take-away business for a while. Umm... at the end he cheats on his wife with her before flying back home to his wife and child/children. Saw it on BBC YEARS ago and only now is it bugging me that I've forgotten the title. Alas, I don't know any actors/dates/director info. Still, please help! Thanks xx