This article originally appeared on Rolling Stone. The guy in the short-sleeved, striped button-down shirt certainly looks happy enough, playing the bass alongside his brothers and relatives, watching the kids dance to his band’s hits about girls and cars and surfing. But something is clearly troubling the Beach Boys’ singer-songwriter and resident musical genius Brian Wilson, and in the film Love & Mercy, the epiphany that will give birth to both creative heights and a descent into dark times is communicated in a few facial expressions.