I just saw Xanadu for the first time last night. When this movie came out in 1980 I remember my little sister loving it ( one of her other favs at the time was The Pirate Movie ), but Olivia Newton John made me gag and had no interest in seeing it. Originally intended to be a low budget roller disco pic it evolved into a big budget musical and was a great big flop. It's a terrible movie, still it's loads of fun to watch if only for the costumes. It's such a mish mash of big band and disco, 80s big hair and slutty dance costumes, roller disco flash mixed with 40s style hair and big shoulders.