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The Making of Supergirl

202624mMovieDocumentary

Consider Supergirl a "Hero's Journey" for Milly Alcock. She transformed throughout the process of leading her first feature film. We watch as a fly-on-the-wall during key moments of production.

WritersZak Forsman·Jamie Forsman
ProducersCraig S. Phillips·Harold Hayes Jr.

Where to watch

Expected on OTT
around September 15, 2026

Released in cinemas on July 28, 2026. A prediction based on the typical 6–8 week theatrical-to-streaming window — not a confirmed date. Get the WhichOTT app to be notified the moment it lands.

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Cast

MAMilly Alcock
Milly Alcock
Herself
CGCraig Gillespie
Craig Gillespie
Himself
ANAna Nogueira
Ana Nogueira
Herself
EREve Ridley
Eve Ridley
Herself
CVChantal Nong Vo
Chantal Nong Vo
Herself
JGJames Gunn
James Gunn
Himself
PSPeter Safran
Peter Safran
Himself
RHRob Hardy
Rob Hardy
Himself
DCDavid Corenswet
David Corenswet
Himself

More from Milly Alcock · Lead actress

House of the Dragon
House of the Dragon
2022 · 8.4
Supergirl
Supergirl
2026 · 6.7
Superman
Superman
2025 · 7.3
A Place to Call Home
A Place to Call Home
2013 · 7.4
The Gloaming
The Gloaming
2020 · 6.3
Reckoning
Reckoning
2019 · 6.5
Sirens
Sirens
2025 · 6.6
Wonderland
Wonderland
2013 · 5.6
Pine Gap
Pine Gap
2018 · 6.7
Man of Tomorrow
Man of Tomorrow
2027
See all fromMilly Alcock

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The Making of Supergirl — streaming FAQ

Which OTT platform streams The Making of Supergirl?

The Making of Supergirl isn't streaming anywhere in United Kingdom yet.

Is The Making of Supergirl on Netflix?

No, The Making of Supergirl is not on Netflix in United Kingdom as of September 2026.

Is The Making of Supergirl on Amazon Prime Video?

No, The Making of Supergirl isn't on Amazon Prime Video in United Kingdom right now.

Where can I watch The Making of Supergirl for free?

The Making of Supergirl isn't streaming in United Kingdom yet, so there's no way to watch it free at the moment.

What is the OTT release date for The Making of Supergirl?

The Making of Supergirl hasn't started streaming in United Kingdom yet. Based on the typical 6–8 week theatrical-to-streaming window, we estimate it will arrive around September 15, 2026. This is a prediction, not a confirmed date.