can one suggest me a movie based on culture ( culture of any nation )

What do you mean by that?

Umm...can you try wording that a little bit better?

If I read that right, try maybe Slumdog Millionaire, City of God, I dunno.

If you could better explain that, I could give you a handful of good movies.

Ok, so here are ones:
Babel
Australia
Memories of a Geisha
Troya
The boy in the striped pyjamas.

There's this one movie Life in a Day that talks about various cultures.

Forbidden Zone

Honestly, the best movie ever. Here's a clip if you want a preview.