This is important to note-- You must remove all identifying elements like character traits and all setting notations. Practice this with a movie you know well. Keep the remote handy and pause to note every time you recognize a Vogler plot element.
Here are the 12 Basic Elements to refresh your memory. You may wish to keep this list handy to divide your plot notes up after you've finished the movie.
Why is this not plagiarism? Because you still have to write the blasted thing using your words and your descriptions. This is the same as what happens when two different people witness the same event. I guarantee you, they will not use the same words. Upon occasion, you'll wonder if they even saw the same event. Really.
Try it with a writer friend. Agree upon a stripped movie plot and go write. You may write your specialty--high fantasy. Your friend may end up with romantic suspense. For example, have you noted the similarities between the plots of "Avatar" and "Pocahontas"? One is science fiction. One is children's literature. Yet, the plots are remarkably similar.