Where was Alamo: The Price of Freedom filmed?
1988 film by Kieth Merrill
Alamo: The Price of Freedom (1988) was filmed in Brackettville and Alamo Village, 2 places named in its Wikipedia article, in the United States. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.
Places per Wikipedia's article
The Wikipedia article names 2 places. Each links to the sentence that says so.

