Movies Not Showing Up



I have a large number of movies. I have completed a full scan of the library. I have noticed in the log that it scanned the folder Waterworld. However, the movie was not added to my list. In fact, the movie folder currently has just a fraction of my total movies because I am throwing everything onto the NAS. The nas device is FreeNAS running on a baremetal box with Plex installed as a jail. I have added the freenas storage to the jail and plex sees the movies without any trouble. The question is, why would plex scan a folder, see it, then not add it. Is there a more detailed log of what occurred when it scanned that folder? Is there a way to manually add something that does not show up? (this is a followup, my real question is the one just previous to this one).

Thanks for all the help.