What are the ratings and certificates for Tian xia wu shuang - 2002?

Ratings

* IMDb: 5.1/10

* Douban: 6.1/10

* Metacritic: N/A

* Rotten Tomatoes: N/A

Certificates

* United States: Not Rated

* Australia: M

* United Kingdom: N/A

* China: PG-13