Ofcourse... this method teaches restraint, composure and confidence. By repeating sentences that you may find difficult to say you will soon build the habit of mastering speech patters you never could before. Before you realise it your breathing patters will also start to mirror the actors in the videos and develop into your daily talking life. But as everything else in life it takes patience and hard work, I used to go through my playlist everyday because I loved the movie scenes that I chose. Id reccomend finding your favourtie movie scenes and building a playlist. And become so fluent in it that you can repeat the whole dialouge without even watching the scene. Then you will start to see improvements quick