Imagine a crowded beach in Amity, a boy on a lilo, a fin coming, and no da-dum. Or Superman taking off in an aural vacuum. Or Darth Vader making an entrance without his ominous fanfare. The music of John Williams has coloured a staggering number of seminal cultural moments over the last 50-odd years, and the films of Steven Spielberg are inconceivable without his honeying influence.