@AyahImad said:
API for Arabic movies
Is there by a chance an API for Arabic movies?

In your case:
ar-AE = Arabic-United Arab Emirates
ar-SA = Arabic-Saudi Arabia

There are two new filters: &with_origin_country= and &with_title_translation=
Example for India:

https://api.themoviedb.org/3/discover/movie?api_key=THE_KEY&with_origin_country=IN  

You can also use the old solution.
Filtering by the Original Language is possible.
For example, in the case of India, the &with_original_language= parameter can be added.
Example

https://api.themoviedb.org/3/discover/movie?api_key=THE_KEY&language=en-US&sort_by=popularity.desc&page=1&primary_release_year=2020&with_original_language=hi|kn|ml|ta|te

But beware of duplicity:
A Language with Multiple Countries

ar  Arabic 2 (AE+SA)
en  English 6 (AU+CA+GB+IE+NZ+US)
fr  French 2 (CA+FR)
de  German 3 (AT+CH+DE)
ms  Malay 2 (MY+SG)
zh  Mandarin 3 (CN+HK+TW)
pt  Portuguese 2 (BR+PT)
es  Spanish 2 (ES+MX)

A Country with Multiple Languages

CA  Canada 2 (en+fr)
CN  China 2 (cn+zh)
IN  India 5 (hi+kn+ml+ta+te)
NO  Norway 2 (nb+no)
ES  Spain 4 (ca+es+eu+gl)

Thank you so much