I've heard they banned distribution of Polish subtitles in Poland used the English versions of movies? The Polish police closed down napisy.org - the most popular Polish website offering free movie subtitles in Polish.
For me they went too far - many people used them to learn English, for example :}
Found more info:
"Nine people involved in a community portal Napisy.org were held for questioning by the Polish police forces this Wednesday. They will be probably be accused of publishing illegal translations of foreign movies (which is forbidden by Polish copyright law). Napisy.org website was shut down immediately afterwards by the German forces (since the servers were located in Germany). The service was the most popular Polish on-line portal where users were free to submit translated subtitles for popular movies."