I have a feeling this movie is doomed because of the source material's writer, but I remain excited to see it, being a fan of the book; Summit may have thought their biggest hit already came from a crazy Mormon so it would be a breeze to deal with one again, then found out otherwise. For those of you not familiar with the novel, our protagonist Ender is about to jump into zero-gravity battle school, which could arguably be described in modern vernacular as space-Quidditch with stun-lasers.
I think the official plot synopsis they're giving out is maybe too spoilery, so here's the first half of it, with the part that describes events in the second half of the story edited out:
In the near future, a hostile alien race called the Formics have attacked Earth. If not for the legendary heroics of International Fleet Commander Mazer Rackham (Ben Kingsley), all would have been lost. In preparation for the next attack, the highly esteemed Colonel Hyrum Graff (Harrison Ford) and the International Military are training only the best young minds to find the future Mazer.
I'd prefer it if comments stuck to the property itself and not the author's religious beliefs, but I will say this - many great fantasy books, like The Wonderful Wizard of Oz and Alice in Wonderland, were written by massively flawed individuals. If we hold every creative work to the personality standards of its creators, I'll tell you that the nicest guy I've ever met in this line of work is Rob Liefeld.