You can try this site:

http://ororo.tv/en

There many films and serials with subtitles in different languages.

Evo probaj ovde pa nađi šta te zanima:

http://engsub.org/

I have not tried but I found these websites

http://project-modelino.com/movies.php?site_language=english&learn_language=english

I think on Popcorntime you can choose different language subtitles.

Vadym, thank you a lot. :)

Suzana, mnogo Vam hvala. :)