While in the USA and Europe (France) the Assassin’s Creed movie release in December in Japan you have to wait a little bit more.
Ubisoft Japan and FOX Movies today announced the official release date of the Japanese version which is March 3, 2017. From that day you can watch the official Japanese translated version of the movie in all the big cinemas in the country!

With the official release date announcement, Ubisoft Japan published the latest promotion video of the movie which is the same as the English version just with Japanese subtitle.