The cast of Chinatowns - 2002 includes: Martin Yan as himself

Yes

There has been around four Chinatowns in Nanimo. Nanimo is currently located in Canada.

Nope, no Chinatowns in Finland.

They settled in areas known as Chinatowns, typically in urban centers. These Chinatowns served as cultural and commercial hubs for Chinese immigrants, providing a sense of community and support in a new country. Today, many major cities around the world have flourishing Chinatowns.