The Bartimaeus Trilogy It has the potential for epic fight scenes, complete with snarky anti-hero, young hero, evil adult, and in one of the reviews the guy even described it as 'cinematic action'.
I also think some of Eding's longer series, such as Belgariad or Elenium have potential. They have such a varied cast, plus plenty of action.
Oh! And I want to see Morrow Days. Such an epic saga!