The Estonian DVD/Blu-ray release typically includes Estonian subtitles. Look for the "Subtiitrid" section on the back of the case to confirm eesti keel is listed.
For a more technical approach, researchers at TalTech have developed tools like Jutukuva that can help display subtitles. taltechnlp/jutukuva - GitHub See How They Run Subtiitrid Eesti
If you have purchased or rented the movie digitally, check the language specifications. These platforms often list available subtitle languages before purchase. DVD and Blu-ray See How They Run Subtiitrid Eesti