http://hkmdb.com/db/movies/view.mhtml?id=9426&display_set=eng
I only bring this up because I happened upon one of my old French release posters that can help clarify the way the Chinese title might read:

...and it suggests the reverse i.e. 'Dai Di Shuang Ying' instead of 'Ying Shuang Di Dai' (or 'Shuang Ying Dai Di'). Your call guys. Oh BTW, please put the scan to good use.