My film lesson

My film lesson 

For this interesting exercise I chose to watch some clips from the recent film "The Wolf of Wall Street". I learned that if i see a movie without subtitles, I have some difficulty understanding the dialogue in which there are words that are part of a slang or which are used exclusively in a particular context. So I think the best solution to solve my problem in understanding the particular type of dialogue is to see more movies in this way with the help of subtitles. 

(In particular, I saw the scene where Jordan Belfort talks with the federal agent who wants to arrest him.)