^I actually thought The Similarillion might be adaptable (enormously abridged of course) if it were used as the basis for an animated anthology DVD like Animatrix, Gotham Knights and I think they did one for the Halo games too.
You'd have a "long" (30 mins-ish) segment covering the broad strokes of the creation mythology and the first age with a bunch of shorter segments in various styles touching on some of the more memorable tales or characters. The way Jackson and co handled the prologue to FotR is a good example of how to handle the material; that is rendering it down to the essential facts without going into too much detail or exposition.
I think that's as close to a Similarillion adaptation as anyone can hope for (or wish on someone for that matter.)
