On the directory in which your movies are stored, try performing a chmod and make the permissions 777. Try something like this: chmod 777 "directory for movies would go here." I think you are having a problem with read write permissions. When you do this chmod this allows everyone to read and write to this directory on your network. If this works for you, then I would go back and change the permissions to something that only allows your user to have control of the movies directory. A simple tutorial can be found here: My link
Let me know if this helps you.