What's funny about the Final Fantasy series of video games is that they are known for pushing the bounds of storytelling. This is especially true in how the games, despite being on weak hardware, were able to adopt some filmmaking-inspired stylistic choices that set the game apart. You'd think that would translate to an incredibly great story for their first movie, but in fact the story is the worst part about the movie.
The movie looks great, but I've seen it several times and I still couldn't explain what it was about. You could put a gun up to my head and I still couldn't tell you. Gamers aren't like comic book fanboys. Gamers will not show up if they think the movie will be bad. That's why you see so many gaming movies flop. They always suck so the gamers don't show up.