Margin Call (2011)

"Follows the key people at an investment bank, over a 24-hour period, during the early stages of the 2008 financial crisis."

https://www.imdb.com/title/tt1615147/

Anons, the above movie is the only movie that uses the phrase MUSIC IS ABOUT TO STOP according to Movie/Script Quote database website QuoDB.com

http://www.quodb.com/search/music%20is%20about%20to%20stop