Where was The Emperor Waltz filmed?
1948 film by Charles Brackett, Billy Wilder
The Emperor Waltz (1948) was filmed in Rocky Mountains, Jasper National Park and Canadian Rockies, 3 places named in its Wikipedia article, in the United States, Canada. Wikidata itself records the shoot only as Alberta. Each place says where its claim comes from.
Places per Wikipedia's article
The Wikipedia article names 3 places. Each links to the sentence that says so.
Recorded only at country level
Also filmed in Alberta, but the exact places are not known, so they are not on the map.
Filming locations that are mapped there: Canada
Also shot in these places
Dr. StrangeloveWar film1964

