Walter Cunningham, best known for his role as a lunar module pilot on the historic Apollo 7 mission, also made notable contributions to film that resonate with collectors. His involvement in the 2016 documentary "Climate Hustle" highlights his transition from the cosmos to pressing earthly concerns, capturing the intersection of science and media that collectors appreciate. This film not only showcases Cunningham’s scientific background but also serves as a critical commentary on climate change, making it a unique addition to any physical media library. Collectors are particularly drawn to his work for its rarity and the significance behind his dual legacy in both space exploration and film. "Climate Hustle," with its limited releases on DVD and Blu-ray, offers a fascinating glimpse into Cunningham’s advocacy for scientific truth, appealing to those who value educational content and collectible documentaries. As a figure who bridged the gap between science and popular culture, Cunningham’s contributions remain a vital part of the physical media landscape.