Hi @manjarb This article should explain everything for you. A quick and simple discover example would look like:

https://api.themoviedb.org/3/discover/movie?api_key=###&language=th-TH&region=TH

Obviously you can use any one of the ~22 filters listed here.

Cheers.

Thanks!

@travisbell I tried you solution but did not it was actually return movies from many countries with Thai language details not only Thai movies as i need.

You'll have to play with all of the different filters. We probably don't have that many entries with a Thai release so your mileage may vary when using the region parameter.