Henry is 94 years old, severely withdrawn, barely responsive to the world around him. Then someone puts headphones on him and plays Cab Calloway. In seconds, he is awake: animated, singing, eyes open and full of recognition. That moment, captured in Alive Inside, became one of the most shared documentary clips in internet history, and it is the film's emotional core. Dan Cohen, a social worker and founder of the nonprofit Music and Memory, believed that the personalized music of a person's life could reach parts of the brain that dementia had seemingly locked away. He was right, and this documentary follows his fight to get a healthcare system built around medication and institutional routine to take that insight seriously. Director Michael Rossato-Bennett weaves together the stories of residents transformed by music with illuminating interviews from the late neurologist Oliver Sacks, whose research on music and the brain informed the science behind Cohen's work, and musician Bobby McFerrin. Winner of the Audience Award at the 2014 Sundance Film Festival.

Why This Film Matters: Personalized music is cheap, carries almost no risk, and most care settings still do not use it. What stands in the way is rarely the evidence. It is how hard it is to change the way things are done, even when the change costs almost nothing and the evidence is sitting right there. That gap, between what we know helps and what we actually provide, is where this lands hardest, and underneath it sits a harder question: what do we owe people we have quietly decided are unreachable?

Please note: Music and Memory is a nonprofit playlist program, not music therapy, which is a licensed clinical profession requiring board certification. The film does not always draw that line.