I have a cool script for a short animation movie. How do i make it happen?

Aeon Flux is 2D anime style, as far as I can remember. Shorts are very unlikely to interest professional studios, especially if they don't contain original new characters and worlds. So you can either make it yourself, perhaps in partnership with a couple of out-of-work (Deviantart?) anime artists and voice actors who think the script is totally incredible (if so, have a look at Anime Studio Pro as the software, and ask around on the software's forums). Or consider hiring a strong comics artist to spend a week or two turning your script into basic lettered 'pencils' layouts for a pamphlet comic book or a landscape-format web comic. Just the layouts, _not_ a fully inked/coloured/lettered comic book. That might then get the attention of animation collaborators, far better than yet another script would. If your artist is really good at working all the 'cinematic' angles, then it would also give you lots of ideas for the storyboard or animatic for the animation.