What is the reasoning behind any cropping? What is the purpose of additional cropping? Is The Empire Strikes Back cropped throughout?
All Blurays produced from scanned film have to be cropped to some extent to cover up edges of the frame, and things like the soundtrack. Different shots might require different amounts of cropping. When these films were originally projected in theatres, they were ‘cropped’ by the projectionist, but obviously you can’t really do that with a TV so the Blurays have to be cropped by the studios producing them. Clearly some times more thought and effort is put into this than other times.