I just watched on blue ray the dark knight which was shot in 70 mm . it is worth watching even if you are not in to batman movies. above all the sound and picture is amazing and you get to test your hd picture to its fullest quality . when you buy hd television ,often the broadcaster is showing only half hd and the sound is often below standard also . At this time broadcasters are airing only 720p at maximum and often the program can go as low as 480i and for the first time I saw what 1080 p picture looks like at home . we tested the sound and concluded that optical output of sound using fiber optics connected to a surround sound makes the sound 8 times better than using TV speakers.