Well, sometimes independent film festivals or cultural events might screen movies like 'Anwar the Untold Story'. You could keep an eye on local event listings. Also, reaching out to film clubs or groups in your community might give you a lead on where to watch it. They often have knowledge about hard - to - find movies and might be able to point you in the right direction.
First, try looking for it on local video rental stores if they still exist in your area. They may have a copy of 'Anwar the Untold Story'. Another option is to search for it on some international DVD - selling websites. However, make sure it is legal to purchase and view in your region.