" Like the Rolling Thunder Revue, The Last Waltz was fueled by cocaine. 'It was ankle deep,' says Michael McClure, who read poetry as part of the concert. 'When I look at that film, I get a coke high.' Backstage there was a cocaine room, painted white and decorated with noses cut out of Groucho Marx masks. A tape played sniffing noises. Neil Young came out to sing 'Helpless' with a white lump hanging from his nose. The producers had to hire a Hollywood optical company to have the lump removed from the film. "

― Howard Sounes , Down the Highway: The Life of Bob Dylan