The Saturday Night Fever (1977) soundtrack is one of the best-selling albums in history, and remains the biggest-selling soundtrack of all time, selling over 45 million copies worldwide. It produced 4 #1 singles & became the catalyst for the ‘hate disco’ ‘disco sucks’ movement. The soundtrack & the movie both capture a time & place perfectly.
The Bee Gees were big stars & this propelled then briefly into superstardom. I don’t think anything they recorded after this was as ‘compelling’ or as catchy. I do have some of their early work before they went supernova but am not a fan. The songs here are well-crafted & engineered. For me the standout cut is Disco Inferno which really captures the power of disco but was too dangerous at the same time – the Bee Gees were safe & never dangerous.
It also features some Walter Murphy – his updated disco-fied classical spawned a trend for this type of cover work that quickly became pure kitsch with disco maulings of big band, tangos, Gregorian chant – who remembers the slamming version of Carmina Burana?
Another disco movie sound is Thank God It’s Friday (1978). Unlike Fever this has no real plot, no family dynamics just pretty people dancing at the disco. A more representative collection & more gritty than Fever plus Donna Summer – real disco star belting out Last Dance which went on to win her an Academy award for best song. Both soundtracks are worth having & well make you want to dance dance dance.
TOpoet 
Paul Jabara won the Oscar for Last Dance, not Donna Summer. I hope you are well. Philip
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True, but it was her performance that sold the song to those Academy voters.