Two films for The Hobbit? Invented materials to "fill in the gaps"?

[Tuor in Gondolin]

well it all depnds on where thy break it up i thnk the last shot of the first movie would b the dwarves being dragged into mirkwod's dungeons

The trouble with that is it might come too late in the
story. What about when they enter Mirkwood or when the
dwarves or captured by the spiders (with Thorin by
Thranduil) and Bilbo is left frantic, while at
the same time the White Counsel is seen deciding to
attack Dol Guldur or even beginning the battle?

Of course, if PJ does such films you'd have to be
prepared for Aragorn being aged from 10 to about 20
so he could have his first trysts with Arwen (actually, not
altogether a bad idea).