According to what I’ve read, the only footage to survive from the silent version is this trailer-
http://www.youtube.com/watch?v=Asajgm-ciWA
I would like to see a production of Owen Davis’ stage play version. Or at least get a copy of the play to read and compare to the book and the other film versions.
I saw the Redford-Farrow film several times when I was young and it really defined the story for me.
The new DiCaprio-Mulligan version doesn't look as good to me.
Baz Luhrmann doesn't really do realism -- Moulin Rouge! definitely wasn't "about" the 1890s in any "realistic" way.
Also, when I saw the earlier version, I wasn't familiar with the actors as actors, so they could just "be" the characters of the story.
I'm pretty sure Sam Waterston is a better Nick than Tobey McGuire, though.