Production question. Are you using a 2D wrapped image for the panoramic? Where/how/did you illustrate that? Also for the transition to looking out of the window, come to think of it?
We didn't use a panoramic, it's actually a simple red fog shader. The towers outside are all geomtry. And for the transitions, We simply rigged the model with a head joint. Animated it in blender and attached the camera to the head joint. That way I could simply import the animations, to further use them as transitions. Hope that explains it.