Don't know if you've found this site yet but it has a lot of documentaries and a few movies as well.
Check out the list on the right and enjoy. I was watching the 30 days christian/atheist episodes and finished all 4 episodes on the century of self, which was a great 100 year review of the growth of psychoanalysis and how it influenced us all.
If you watch something, write a review for others. I also enjoyed WE- Arundatti Roy- an excellent video exploring the fiction/non fiction parallels with art and music and photographs.
Best of all, they're free.