When I sat in the packed-to-capacity ImageNation screening of “Better Mus’ Come” (a film by Storm Saulter), I hoped for a kind of catharsis. I welcomed some perspective on events during my childhood in Jamaica that had been filtered to me through textbooks and my parents’ hindsight. What I got was a visually stunning, well-crafted, and honest attempt at exploring the impact of tribal and Cold War politics on Jamaicans in the 1970s, which all too often took the form of violenc