Going he wrong way mate, the streams are protected and that prevents you to capture and download Netflix movies straight from them like that guy did in the youtube video tutorial on how to download movies from Netflix.
What you need to do to be able to save Netflix streaming movies is to find yourself a good screen recorder software and solve this the fast way. Think this one can handle the problem pretty good, for example:
http://audials.com/en...ies_from/netflix.html
Found it round the web, since you made me curious to see if it's still possible to save streaming Netflix videos in any way.
That Audials Netflix Recorder or whatever it is seems to be able to capture and record Netflix streaming videos and movies quite good, so it might be worth taking a closer look at it and see what it is able to do.