You've got to love any film that features ghosts in the New York Public Library.
The Academy Award-nominated song "Ghostbusters" was written and performed by Ray Parker Jr. The line is still remembered today: "Who you gonna call? Ghostbusters!"
Huey Lewis & the News sued Parker, claiming that "Ghostbusters" ripped off his song, "I Want a New Drug." This was settled out-of-court in an undisclosed agreement, although it was leaked that Parker had paid Lewis a lot of money.
http://www.guntheranderson.com/v/data/ghostbus.htm
If there's something strange in your neighborhood
Who you gonna call - Ghostbusters
If there's something weird and it don't look good
Who you gonna call - Ghostbusters
27 April 1988, New York Times, pg. C22:
Ray Parker Jr. made an undisclosed out-of-court settlement involving the song "Ghostbusters" because of its similarity to Huey Lewis and the News's "I Want a New Drug."