1955: A “daring” Hollywood expose of the surging problem of juvenile delinquency, The Blackboard Jungle opens in movie theaters across the U.S.A. A pretty good film, featuring Glenn Ford and a very young Sidney Poitier, gains more notoriety for the music playing behind the opening titles.
Bill Haley & the Comets‘ “Rock Around the Clock” had been released on its own a year earlier, but hadn’t really attracted much airplay. The movie’s popularity sends “Rock Around the Clock” to the top of the charts, kicking off the rock ‘n’ roll era in earnest and establishing a link between Hollywood and the sales of rock music that continues to this day.