similarly i used to watch english movies with english subs.
here is my method. i find good movies with english subtitle available. in this case you should find turkish movies with turkish subtitle available. check: http://divxplanet.com/altyazi/
then after finding subtitle i find the movie in divx format and download it. visit torrent sharing sites and install utorrent program in order to download. http://thepiratebay.se/
in the end i put the movie and subtitle side by side and watch it in the target subtitle. it might be any language whatever you want to read and hear.
attention: fps (frame per second) should be same with movie and subtitle. prefer single part movies, i mean one movie and one subtitle containing the whole movie.
I do the same thing. That is why I didnt forget my English after graduating from high school. By the way my English was the best in my class but it is avarage in this site 