Ian Cheney is a distinguished documentary filmmaker whose work has garnered both critical acclaim and a dedicated following among physical media collectors. His most notable film, *The Most Unknown* (2018), explores the lives of scientists across various disciplines, making it a thought-provoking addition to any educational collection. Collectors often seek out Cheney's earlier works, such as *King Corn* (2007) and *The Search for General Tso* (2014), both of which delve into food and culture, sparking discussions about sustainability and identity that resonate with audiences. Cheney's ability to blend personal storytelling with pressing societal issues makes his films not only engaging but also historically significant. Titles like *The City Dark* (2011) and *Picture a Scientist* (2020) challenge viewers to consider their relationship with the environment and science. As a result, his films are frequently sought after for their rich content and the impactful conversations they inspire within the collector community. Whether in DVD or Blu-ray format, Cheney's documentaries are essential for anyone passionate about film history and the stories that shape our world.