Yep, Ender understanding the enemy, loving them, and the using that to destroy them is kinda the whole point...
As if mainstream Hollywood understands any point.. my bet is a generic resolution. Ender has some super secret awesome military tactic (he probably was inspired by or learned from Rackham) up his sleeve and pulls it out at the very last moment to win the day.. cue The End.
I just don't believe they'll go with the book ending as good as it is.
And on an unrelated note:
I was really bummed out when i learned that Orson Scott Card is such an ass