When CCR took the stage for two nights in April of 1970, the band had reached the height of their international stardom and arrived ready to prove themselves as equals to the likes of Led Zeppelin, Jimi Hendrix, and the Beatles, who had announced their breakup just days before. More than 50 years later, the new documentary concert film narrated by Jeff Bridges, 'Travelin’ Band: Creedence Clearwater Revival at the Royal Albert Hall,' will be available for streaming on Netflix beginning September