[4] Interviewees include a host of filmmakers, authors, and scholars including Stephen King, Quentin Tarantino, Cate Blanchett, Geena Davis, Edgar Wright, Bill Hader, Megan Fox, Ari Aster, Rob Zombie, Greg Nicotero, Nancy Allen, Diablo Cody, Jack Black, Tippi Hedren, John Landis, Jamie Lee Curtis, Jordan Peele, Doug Jones, Andy Muschietti, Barbara Muschietti, Joe Dante, Roger Corman, Richard Donner, Dean Cundey, Robert Englund, Tobin Bell, Tony Todd, Stuart Gordon, Bryan Fuller, Howard Shore, Mary Harron, Tom Savini, Joe Hill, Victor LaValle, Bruce Campbell, Leonard Maltin, and Leigh Whannell.
[6] Breakthrough featured films helmed by notable directors and actors including Ron Howard, Paul Giamatti, Angela Bassett, Peter Berg, Akiva Goldsman, Ana Lily Amirpour, David Lowery, Shane Carruth, and The Malloys.
On the pop culture side, Greed featured interviews with acts such as Sonic Youth, Pussy Galore, Daniel Johnston, The Swans, Wire, Plasticland, Rites of Spring, Live Skull, and Robyn Hitchcock, plus comics figures Los Bros Hernandez, Charles Burns, Peter Bagge, Chester Brown and Clive Barker.
His television career started at the Discovery Channel, where he wrote, directed and produced the special Nighthawk: Secrets of the Stealth Fighter, the mini-series Wings Over the Gulf, and the 13-part series Fields of Armor, a survey of mechanized warfare in the 20th Century.
During his time running the production company Arcwelder Films (which he founded with Martha Adams), Sayenga wrote, directed and produced many more documentaries, including Spies Above, Robots Rising, Explosive Situations, High Speed Impacts, Inside the Kill Box (made on the tenth anniversary of the first Gulf War and featuring interviews with players such as George H. W. Bush and Dick Cheney), and the engineering series Skyscrapers: Going Up, Bridges: Reaching Out, and Tunnels: Digging In.