This was signed at a private event with 8 of the cast and crew. This is a highly limited item, which has not previously been made available for sale. Signatures include, roughly in order from left to right.
Top Row: Zack Snyder and Gal Godot. Center Row: Ben Affleck, Hans Zimmer, and Jesse Eisenberg. Bottom Row: Holly Hunter, Diane Lane, and Laurence Fishburne.
The book is in amazing condition.