The monster of all concert films — and concerts — "Woodstock" is an intimate visual document of the legendary three-day music festival that drew nearly 500,000 people to Max Yasger's farm in 1969. Director Wadleigh roams from stage to mud-caked street, talking to fans, bands, cops, and local "squares" alike, while the greatest acts of the time — Jimi Hendrix, The Who, Joe Cocker, Sly and the Family Stone, and many others — kick out the jams.

"Woodstock" is a nearly four-hour kaleidoscope of unremitting fascination. Musician and man/woman-in-the-street interviews are interwoven with concert performances, all of it presented in the then-ground-breaking format of multiple on-screen images. The divergent outlooks of adult town residents and visiting hippies shed an amusing light on what used to be termed the generation gap. What everyone seems to share, regardless of age, is sheer awe at the enormous influx of humanity that fueled this largest of all happenings.