https://hkmdb.com/db/movies/view.mhtml? ... ay_set=eng

Although flyer, onscreen title and HK newspaper ads all say 龍門三劍客, this title is not in the database yet.
I can't find a source for the current main title 龍門三劍俠, and the english main title sounds a little like a suboptimal literal translation.

If no one objects, I will change both English and Chinese main titles to:
龍門三劍客 / The 3 Musketeers of Dragon Inn

The other titles I would keep as aliases because I can't prove that they don't exist.

I deleted "my" newspaper ad alias, as another editor already changed it to the main title and moved the "Door" title to the aliases including source.

I also changed the Chinese main title into 龍門三劍客 and added the alias 龍門三劍俠.