I'm not extremely excited about the movie for two reasons: Mostly because of the fact that they're targeting the basic moviegoers, and not ff fans by taking out most of the things that are so dear to us; chocobos, a medevil time, but they do have great special effects, which we are used to.
Secondly, Nobuo Uematsu did not compose the score. I haven't heard what this new composer has done, but I am pretty sure he can't do as well as Uematsu has.
Squaresoft just changed too much of it; they're not really targeting the 'true' Final Fantasy fan if you ask me. (this is kinda the argument people had with ff8, but I liked that, so maybe the movie will be good afterall; The movie may be good, but I doubt I will ever consider it a true FF)