“BTS: The Return” captures a poignant snapshot of a troubled comeback

BTS’ comeback could be likened to a classical Greek hero’s homecoming. After years at war – or performing military service as it were – they’re back to pick up where they left off with their lives, music and fans. But as with those ancient tales, such long-awaited returns aren’t without some conflict.

“There’s a long lineage of storytellers and filmmakers who have told part of BTS story, and for me, this moment was so pivotal and almost mythical,” director Bao Nguyen told members of the...