Does the error message say something about badly formed commands? And does it happen only during cutscene? It's an issue a lot of people are having including me yet neither nvidia nor bioware seem to care.
Nvidia is aware of the issue and it's on the list of unresolved issues in the driver documentations. I assume the problem lies with BioWare optimizing DA:I for AMD's Mantle instead of concentrating on DirectX (which most people use), simply because both next gen consoles run on AMD hardware.
That being said, I'm using a GTX770 (factory OC), Win7 (DirectX 11) and the latest Nvidia driver and I do not have any crashes or technical issues, with a stable framerate of ~50fps at ultra/high settings.
From a technical point of view, DA:I runs perfectly for me. Maybe people need to take a closer look at their hardware or background processes or whatever. Perhaps tinker a bit with the graphic settings, both ingame and in the driver itself. There certaintly is an issue (I got the DirectX error and CTD when everything was set to ultra) but I don't know if the people affected by it have tried everything on their side to find a solution yet.