The droning narration nearly killed the film for me but others might like it. The images are spectacular, sublime, astonishing and terrifying, and they raise meaty questions.

...has that same sense of playfulness but also wants to explore [Katia and Maurice's] obsession, their willingness to face danger.

It succeeds in highlighting this tenet of their work, making it a valuable introduction not just to their unique lives and groundbreaking studies, but also to their own singular artistry.

The abundance of the Kraffts' own extraordinary film footage does mean this feels like a documentary made very much on their terms, even though they’ve been dead for over 30 years.