Just how many versions can a film have? I don't know but, for example, let's take Metropolis. Off the top of my head, there's the original Berlin version, the German version (with less footage), the Channing Pollock version (way less footage), the BBC/PBS version (saved for posterity on one of the 1st VHS recorders!), the Giorgio Moroder adaptation (the 1st version I ever viewed), the "penultimate" version (post-Soviet Union break up and utilizing as many archive sources as possible) and .. whew ... finally the Argentinian restoration (the original minus 5 minutes or so).
That may be a record for films that would be made. How about films that were not made? (well, except for some test footage). I nominate War Eagles for consideration on that topic.
Connover and Riley did an excellent job of research in uncovering all types of artifacts on the films initial stages: Interviews, numerous summaries, notes, shooting scripts, budget documents, etc etc.
Each of these revealed a different "War Eagles".
Some tidbits:
_the giant White Eagle was a not too veiled homage to the symbol of Poland and the villains of the story were equally obviously Nazis.
-part of the story was inspired by the absurd claims of Henry Grindell Matthews. From my own research, I'm aware that he'd been peddling crazy inventions since the 20s (some of which also inspired a few silents of the day).
_the existence of two lost world races (many takes of the tale only have one)
This is a good companion piece to the novelization. My own editorial opinion? I'd take the novel if I wanted a nice escapist read. The shooting script was a bit unwieldy for me. However, if its the film itself that's of interest... then choose this tome.