As this RP no doubt testifies, our favorite era is that of the Old Republic. In particular, eras where not everything is set in stone and where the Jedi have guts and the Sith are many.

As for movie potentials, we think movies set around the major events in the old republic legends. In no particular order:
Great Galactic War.
Revanchism.
Darth bane and Rule of Two
Mandalorian Wars
KOTOR (2)
Great Hyperspace War
Exile of the first Sith
Exar Kun & the Great Sith War.

Too many good options. Maybe stories borrowing from several of these at once, but not blindly following them.