 As Led Zeppelin's popularity soared throughout the 1970s, Peter Grant became increasingly notorious for being brutally protective of his band and their finances; "The Song Remains the Same" captures one such exchange between him and a concert promoter.When Warner Bros. approved the film they did so on the provison that expletives would be 'bleeped' out.Clifton took the optical print and removed the words, and the film was given an appropriate rating.