I've been able to reproduce the crashes in three specific cutscenes, all part of the main story quest in Stormblood. I know two of them are:
- The Die is Cast - Cutscene #5
- Hell's Beacon - Cutscene #1

I can't remember the other one offhand. They all crash at the exact same point every time. I'd imagine there are others, but I've been playing in DirectX 9.0c mode since the crashes and reboots really disrupt my gameplay.

My video drivers are up-to-date and have been since my original post. They are version 441.20, which is the current nVidia release.

I will try compatibility mode under DX11 and will report back.