I dont understand why noct didnt save luna since he could travel back in time before the incident at Altissia. I mean he still has to die but I dont recall anything where she had to die. Dick move on his part to atleast save her ya know? Plus they could have easily used Kingsglaive as a prologue and tutorial for the game and play as Nyx and sum that movie up in maybe 45 minutes to an hour tutorial.