Soundtrack Goofs?
For example, Mr. Big Stuff, by Jean Knight, was released in 1977. Many other songs I can identify as being released in the mid to late 70s, but without an actual list, I have to do all of the research myself.
It would help if the IMDB had soundtrack credits as well, because there's always a track or two I enjoyed in a movie in the past, that I couldn't track down without considerable effort. Anyhoo, here's the major anachonisms:
Mr. Big Stuff, 1977
Dancing Queen, 1976
Lady Marmalade, 1974
Rock Your Baby, 1974
Love's Theme, 1974
Come And Get Your Love, 1974
While the 1974 titles are almost close enough in date, the Watergate Scandal took place from 1972 to 1973, with final hearings and impeachment in 1974.