Regrettably, unless it involves the more dynamic camera, you can't rewatch a cutscene. There is a lot of important dialogue in the DRK 30-50 line that hints at some big revelations later on, but you can only watch the cutscenes from the 30 and 50 quest, and even then not all of them.

Basically, if you're still able to move the camera, you can't rewatch the scene at the inn. Sometimes even then.