I have several HDDs, so I would need many entry points (one for each HDD). So I create one entry point to a folder, and in that folder I use shortcuts to all the various locations of all the movies.
It makes it nice, since if I want to find where I stored a movie, I go to the shortcut folder and simply follow the shortcut. The location bar in Windows Explorer shows me which HDD I went to.
As I add more HDDs, I simply add shortcuts to that folder and have no need to change anything else.