Herzog says Elon Musk was very shy on camera, sometimes pausing for minutes at a time before replying to Werner Herzog's questions.
The muffins and croissants on the table in the Catsouras interview were laid out by the family for Werner Herzog and crew. Cinematographer Peter Zeitlinger suggested that the food should stay in the shot to make it more interesting.
Werner Herzog says he told the Catsouras family to look back at him when they finished their comments, to create a very mysterious image as all the eyes look in one direction.
Werner Herzog wanted to interview Tim Berners-Lee for the film, but he was unavailable. He also wanted to include a section about the internet currency Bitcoin.
Astronomer Lucianne Walkowicz has a prominent tattoo on her left shoulder of the horse drawings at Chauvet Cave, a major focus of Werner Herzog's 2010 documentary, Cave of Forgotten Dreams (2010).