Netflix documentary called Trainwreck: Woodstock '99, detailing how the festival of the same name became a catastrophe. Altamont free concert Lang was not among the producers of the December 6, 1969, Altamont Free Concert that some had billed as a "Woodstock West." However, Lang was asked by the Rolling Stones and Grateful Dead to assist with the last-moment re-location, from Sears Point Raceway to the Altamont Speedway, near Tracy, California. Initially, the concert was planned for Golden Gate Park and was to feature the Rolling Stones, the Grateful Dead, Santana, Jefferson Airplane, The Flying Burrito Brothers, and Crosby, Stills, Nash & Young. The city of San Francisco revoked the permits for the Golden Gate venue, ostensibly due to a San Francisco 49ers football game at Kezar Stadium, located in the park on the scheduled date. Subsequently, the concert was moved to Sears Point Raceway. However, a dispute over film rights led to its cancellation. Lang and Grateful Dead manager Rock Scully were then offered the Altamont Speedway—a rival to Sears Point Raceway—by owner Dick Carter. After the venue was set for the concert, Lang appeared, with his experience in moving the much larger Woodstock festival. The venue was moved on December 4 to the racetrack with the concert starting December 6. The venue change created major technical problems, including a stage built too low and close to the fans. The Hells Angels were then hired for stage security, which resulted in numerous fights with concertgoers, as well as an on-stage altercation with members of Jefferson Airplane, in which singer Marty Balin was struck and knocked unconscious. Audience member Meredith Hunter was stabbed and killed when he rushed the stage with a gun while the Rolling Stones were performing. These incidents were captured on film and appear in the Maysles Brothers documentary film Gimme Shelter. There were also three accidental deaths among the crowd of 300,000. Lang is seen in the film. Lang last appears onstage, walking away during the scuffle on the stage between the Hells Angels and the Jefferson Airplane. Just Sunshine Records Lang owned and operated Just Sunshine Records, which produced and released more than 40 albums by such diverse musical artists as Karen Dalton, Betty Davis, and Mississippi Fred McDowell. Lang also managed several successful international recording artists, including Joe Cocker, Rickie Lee Jones, Willy DeVille, Tarkan, and Spanish recording artists El Ultimo de la Fila. The