Lin-Manuel Miranda says that he knows “‘Hamilton’ is the first line in my obituary.” But a pair of new documentaries premiering at the Sundance Film Festival this week capture a wider view of Miranda's life through some of the people who have been most foundational to him. “Siempre, Luis” is a profile of his father, the tireless Puerto Rico advocate Luis Miranda. “We Are Freestyle Love Supreme” documents the improvised hip-hop show that Miranda and several of his “Hamilton” collaborators regularly put on before “In the Heights” altered Miranda’s trajectory, and which they recently reformed on Broadway.