Another good way to improve English skill is music (English lyrics of course), hear music everywhere from your iPod, learn English everytime. You can learn how each word of the lyrics being spoken (although some vocalists are fail to properly speak in English - LOL).

When you're watching a movie with subtitles you're too focused on reading the subtitles, you're gonna improve anyway if you keep going.. But if you wanna go faster try movies that you already watched in your native language and you liked them and then watch them again in english Then try to watch english movies that you never watched and without subtitles, it helps a lot and you're gonna see the difference.

I watch French films with English subtitles. It's very important to hear the language that you are learning being spoken. The following site may be useful to you. It has a person say aloud the words or sentence that you have typed in. Choose the accent that you like after you type in your word/sentence. http://www.oddcast.com/home/demos/tts/tts_example.php?sitepal

I always try to watch movies with polish subtitle and with english reader. This is a very good exercise for the english.

I get good results when I hear English and read Italian in the subtitles; if the subtitle appears some time before hearing the words, it gives you time to mentally translate (training!) and then to follow the sound. English + English is a more relaxed activity. Obviously only you could find your [current] best method.