Once upon a time in China is in my opinion Jet Li's best film.Most Hong Kong film critics consider the first two films great, and the 3rd somewhat mediocre.Personally I prefer the first film over both of the sequels and don't care for the 2nd or 3rd and to me the first film is simply great.Jet Li plays as Wong Fei Hung based on real person in China but the film is not based on true events,and Wong Fei Hung has been used as a character in many Hong Kong films somewhere over 80 films.
You may wish to check your local wal-mart first though rather then buying it off the site as I found it in the store for 13.00$ but it had a slipcover over the dvd case and the slipcover has different box art then the actual dvd case.