started the process by reading the Billboard charts for all of the top hits of the ’70s,” Gunn explained. “I downloaded a few hundred songs, and from that made an iTunes playlist of about 120 songs which fit the movie tonally. I would listen to the playlist on my speakers around the house—sometimes I would be inspired to create a scene around a song, and other times I had a scene that needed music and I would listen through the playlist, visualizing various songs.” Gunn filled his version of the screenplay with very specific needle drops.
