For many of us who didn’t get a chance to experience the true spirit of the free-love movement, the hippie era, and the experimental sounds of the ’60s—Woodstock, the Michael Wadleigh–directed documentary—is as close as we’ll ever get. Just like the 1969 concert itself, the film, which screens tonight as a part of Oscar’s Docs series at MOMA, was plagued by several difficulties (such as the last-minute departure of the original directors, Albert and David Maysles) and was almost never made. Remarkably, many filmmakers and editors on the film were first-timers, including some young kid named Martin Scorsese. But, of course, what we’ll always remember when we think of Woodstock are those three summer days and nights of amazing performances by rock legends such as the Who, Joan Baez, Jimi Hendrix, Santana, and Janis Joplin. Wear a peace sign.

Fri., Feb. 3, 6 p.m.; Wed., Feb. 8, 6 p.m., 2012