By seeing English films, you will hear lots of new words and expressions, specifically idioms and colloquial expressions. I would suggest keeping a note pad with you and making a note of any new words or expressions you hear and you want to remember or you don't comprehend. You can search for the significance later or ask your English instructor.
5. Put knowledge into practice - In your English classes you will discover a lot of vocabulary and grammar however you may not know how to utilize it in reality. Seeing English films will help you comprehend how to use all the understanding you have actually discovered in daily scenarios.
It's much more satisfying to see motion pictures in their original language so turn off the dubbing, switch on the subtitles (if you wish) and take pleasure in!