We've watched a couple of old movies that go with our unit. They were great!
Camelot - my dd and I loved! It was a long musical and I confess we forwarded over a few portions but all in all we really enjoyed it.
Robin Hood with Errol Flynn - colorful, swashbuckling fun!
We read the Howard Pyle version of Robin Hood and not too many things matched up, but after all it is a legend and these have a tendancy to vary. So we weren't too surprised by the differences. Although my dd thought they left out some of the funniest parts. ;o)