“Easy Come, Easy Go” (1967) marks Elvis’s 23rd film out of the 31 he made. It was among his first to really acknowledge the rising counter-culture movement that was gaining traction in the mid and late 60s; this can also be seen in “Clambake” (1967) and “Live a Little, Love a Little” (1968). As a result, there are enjoyable scenes featuring go-go dancing, yoga, unusual artists, and a reference to beatniks, who would …