Re: "300"-style Klingon Mythology Epic Movie?
A couple of potential problems if this is meant as a major motion picture--
Would enough of the general public be willing to go to such a film to justify the cost? Fans might go see it, but what about Joe Blow from Kokomo?
Your box office stars would be unrecognizable under the heavy makeup. Planet of the Apes pulled it off, but a human character was the focal point.
Curly: Moe, Larry, the cheese! Moe, Larry, the cheese! (Horses Collars, 1935)