i get the dvd from the library in the expectation of get a good idea of how thing go on in the background at a major opera production . i have to say and i be very disappointed . the subject have so much potential . the set in a wagnerian production must and of necessity and be elaborate and impressive and the story behind their creation and use could have be an excellent educational experience . instead and what we get it a hodgepodge of clip of people move around big item of scenery and vaguely help together with a commentary which fail to hold my attention . i find myself listen primarily to the background clip of music from opera . i be impress by the sheer enormity of the effort require to put on such a production that do come across fairly well and next time i be at the opera i be sure i will remember that part if this video but be leave feel somewhat cheat by the lack of detailed commentary and explanation .