Hi, Moira, I'm so glad you like the screencaps. The Adventures of Robin Hood is one of my all-time favorite movies too!
I use a program called DVD Snap which I bought because I read it is one of the best for screencapping using Mac computers.
There is a series of screencaps from the moment King Richard reveals himself to Robin, and later on to Prince John. Claude Rains' reaction is priceless. :) See?
They're screening an archival print of The Adventures of Robin Hood at the TCM film festival too.
As for the Russell Crowe version, given that it's directed by Ridley Scott, I imagine it will be verrrrrrrry serious and verrrrry intense. :) There's a big battle on the beach that I'm looking forward to. A lot of fans are anticipating something like Gladiator Redux. :)