With the rise of numerous regional championships, as well as the growth in Olympic-style multi-sport events (such as the Commonwealth Games and the Pan-American Games ), competitions between international track and field athletes became widespread. From the 1960s onwards, the sport gained more exposure and commercial appeal through television coverage and the increasing wealth of nations. After over half a century of amateurism, the amateur status of the sport began to be displaced by growing professionalism in the late 1970s.  As a result, the Amateur Athletic Union was dissolved in the United States and it was replaced with a non-amateur body solely focused on the sport of athletics: The Athletics Congress (later USA Track and Field ).  The IAAF soon followed suit in 1982, abandoning amateurism, and later removing all references to it from its name by rebranding itself as the International Association of Athletics Federations.  The following year saw the establishment of the IAAF World Championships in Athletics —the first ever global competition just for athletics—which, with the Olympics, became one of track and field's most prestigious competitions.
Aside from the elements of Norse mythology in the song, its epic nature and the nostalgic feelings it evokes helped to immediately bring audiences into what Waititi was attempting to do with the film. The track also perfectly fits with the ’70s/’80s aesthetic of the movie, from the logo to the colorful fantasy elements; and the slow motion scenes of Hela posing and the Valkyries attacking look like airbrush paintings on the side of a van brought to life. All told, it’s hard to imagine a more perfect song for not just Ragnarok but the Thor franchise as a whole. Still, it took Waititi’s foresight to know how well it would work in the trailer for Thor: Ragnarok .
The first movie theatres were called Nickelodeons, and were very basic compared the luxurious picture palaces that followed but what an aura of excitement, of laughter, fun and tears surrounded them! Before the introduction of movie soundtracks, movies were often accompanied by scripted music from a piano. Pearl White was the damsel in distress, Francis X. Bushman had lots of adoring female admirers, Theda Bara wrecked homes, Charlie Chaplin and Fatty Arbuckle and Mack Sennett set crazy standards, never to be improved on, and a collection of beautiful ladies adorned the screen. The male and female movie stars were idolized world-wide by adoring fans who could never get enough of them.