still unsolved Feb. 1st, 2017: time and place?

Hi folks,
some months ago I posted the following (see below) but didn't receive any answer... Is the question too difficult to solve or is it just because nobody has read it, so far? Just wondering ;-)
Maybe someone can send me some links to sites which are specialized on Martial Arts movies (and where it might be more probable to get the answer...)?
Kind regards
sprendlinger

two questions please: What do you think
a) in which part of China, and
b) at what time
the movie was set?
As to a, I think this was probably set in a region not very far from the Sea (but, on the other hand, these fishers might get their living from a river, too... from what we see in the movie I can't say whether the fishes sold are from salt or sweet water... at least there are no really big ones visible, no tuna or the like) -
As to b, I'm completely clueless: there's not a single inscription or signpost in any European language anywhere, no one wears European clothes; we don't see uniforms of any kind (no soldiers, neither Chinese nor foreign); there are no cars, trains or other motor vehicles; so this must be a very remote place, way back in time. While, on the other hand, one of the characters wears quite modern glasses!! Really strange.
Any suggestions welcome!
Kind regards
sprendlinger