Newbie - how to get thumbnails on a moviesheet theme

So after looking here:

http://community.wdc.com/t5/WD-TV-Live-Hub-Themes/Moviesheet-Theme-List/td-p/214008

It looks like the process is a manual one.  I was hoping it would get the info from an online database such as Flixter, going by the filename or something.  Maybe this is possible in the future?