Far from a typical music doc, “Zappa” is a multifaceted narrative that brings a complex artist to vibrant life, providing a nuanced look at visionary iconoclast Frank Zappa and the environment that formed him. A simultaneously intimate and expansive look into the iconic musician’s innovative career, the film had unfettered access to the Zappa family trust and its vast trove of archival footage. Exploring the private life behind a musical career that never shied away from the political turbulence of its time, “Zappa” features revealing interviews with Frank’s widow, the late Gail Zappa, and such collaborators as Mike Keneally, Ian Underwood, Steve Vai, Pamela Des Barres, Bunk Gardner, David Harrington, Scott Thunes, Ruth Underwood, and Ray White. “Zappa” is directed by former St. Louisan Alex Winter — a Cinema St. Louis Award honoree in 2015 — who recently returned to acting in “Bill and Ted Face the Music” but who has spent the last decade helming a string of impressive documentaries, including “Downloaded,” “Deep Web,” “The Panama Papers,” and “Showbiz Kids.”