Last February a viral article from Film Music Reporter and a tweet from producer Roberto Ocri ("we got James Horner") led us think that James Horner was assigned to score Ender's Game.
But doubt arised with the release of the trailer last week. Indeed his name was not credited with the cast and producers and IMDb mentions Steve Jablonsky for this film.
Today Summit Entertainment has confirmed that it is the latter who is to score Gavin Hood's film. A few weeks ago many changes occured in the post-production team, which probably determined the composer.
Source : Endernews.com