Son of Cornwall is about opera singer John Treleaven. John has had a forty year career performing in thousands of opera productions including playing the leading roles in Siegfried, Carmen, Tannhauser, and many more classics. Each of these operas are included in the documentary through a combination of archive theatre footage, historical photos, audio excerpts, and interviews from some of John's colleagues.
You can now watch Son of Cornwall online on the following streaming providers in the United States.
| Directing | Lawrence Richards | Director |
| Production | Nico Drago | Co-Producer |
| Crew | Justin Peach | Cinematography |
| Editing | Melanie Dietz | Editor |