I think it would be really cool if you have it say "A long, long time ago in a galaxy far, far away, and incredible adventure took place..."
Also one other thinking aloud kind of thing. Is ther anyway to write somthing somewhat poetic and have it before the "A Long...." and have it be from The Journal Of the Wills?
Maybe something like "During the time of the Clone Wars the chosen one was being tempted but the Dark Side". But something far more poetic.