The Diadem poster
Where to stream

The Diadem

3.5196913mMovieActionCrime

Secret agent Emma has to carry out a special assignment in Germany. Her job is to protect a mysterious box, the key to which she wears as a chain around her neck. But a murderer is hot on her heels!

DirectorUwe Beetz

Where to watch

Not streaming yet
Check back soon

The Diadem was released on January 1, 1969 but we couldn't find it on any streaming service yet. Rights can change — try again later.

Get the app to be notified

Cast · Directed by Uwe Beetz

DRDiana Rigg
Diana Rigg
Secret Agent

More from Diana Rigg · Lead actress

Doctor Who
Doctor Who
2005 · 7.6
Game of Thrones
Game of Thrones
2011 · 8.5
The Avengers
The Avengers
1961 · 7.8
Screen Two
Screen Two
1985 · 7.1
BBC Play of the Month
BBC Play of the Month
1965 · 5.2
All Creatures Great & Small
All Creatures Great & Small
2020 · 8.2
Victoria
Victoria
2016 · 7.4
Penn Zero: Part-Time Hero
Penn Zero: Part-Time Hero
2014 · 7.2
Extras
Extras
2005 · 7.8
Murder in Mind
Murder in Mind
2001 · 8.3
See all fromDiana Rigg

More like this

Knockin' on Heaven's Door
Knockin' on Heaven's Door
1997 · 7.7
The Baader Meinhof Complex
The Baader Meinhof Complex
2008 · 7.0
Sixty Minutes
Sixty Minutes
2024 · 6.8
Baader
Baader
2002 · 3.7
Women in Cellblock 9
Women in Cellblock 9
1978 · 4.6
Joe Baby
Joe Baby
2024 · 5.2
Bang, Boom, Bang
Bang, Boom, Bang
1999 · 7.5
Mad Foxes
Mad Foxes
1981 · 4.9
The Guardians
The Guardians
2012 · 6.0
Asphaltgorillas
Asphaltgorillas
2018 · 5.8
Snowflake
Snowflake
2017 · 6.5
Red Dragon
Red Dragon
1965 · 6.7

The Diadem — streaming FAQ

Which OTT platform streams The Diadem?

The Diadem isn't streaming anywhere in United States yet.

Is The Diadem on Netflix?

No, The Diadem is not on Netflix in United States as of November 2026.

Is The Diadem on Amazon Prime Video?

No, The Diadem isn't on Amazon Prime Video in United States right now.

Where can I watch The Diadem for free?

The Diadem isn't streaming in United States yet, so there's no way to watch it free at the moment.

What is the OTT release date for The Diadem?

The Diadem hasn't started streaming in United States yet. Based on the typical 6–8 week theatrical-to-streaming window, we estimate it will arrive around February 19, 1969. This is a prediction, not a confirmed date.