[user104658]

Interesting some of the subtle changes they've gone for, e.g.

Spoiler:

Sephiroth being teased early with the black feather.

Also a bigger one, to I guess avoid the risk of Avalanche getting less sympathy from a post-911 audience; in the original the Avalanche-planted bomb does indeed blow the reactor to hell. In the remake, the bomb is only a small explosion that disables the reactor without much collateral damage, but Prez Shinra has his forces immediately blow the whole thing to bits presumably to frame Avalanche as uncaring terrorists...