Doug Clifford, best known as the powerhouse drummer of Creedence Clearwater Revival, has made notable contributions to film as well. His participation in the documentary "Dionne Warwick: Souled Out" (1969) showcases his versatility beyond music, capturing a vibrant era of American pop culture. This film is particularly sought after by collectors, as it features rare footage and performances that resonate with fans of both Warwick and the musical landscape of the late '60s. Collectors value Clifford's work not only for its historical significance but also for its representation of a unique intersection between music and film. The scarcity of physical media releases for such niche documentaries means that original copies of "Souled Out" are coveted items, often fetching high prices among dedicated fans. With his dual legacy in music and film, Doug Clifford remains a fascinating figure for collectors who appreciate the rich tapestry of 20th-century entertainment.