Yes the cameras have a max of 30mins, higher tax band in many countries if you go over that!
Really recording to an external device is the way to go for that type of thing if you don't want to use a dedicated video camera. Even the data in recording 1.5 hours of video is a push as you need a about a 90 Gig card for Full HD and then the power will only last so long. Going to use the Black Magic I'd say.
Yes usually could just bounce between a couple of angles but they want one point on this one.