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Conspiracy Theory

6.619972h 15m15MovieActionDramaMystery

A man obsessed with conspiracy theories becomes a target after one of his theories turns out to be true. Unfortunately, in order to save himself, he has to figure out which theory it is.

DirectorRichard Donner
WriterBrian Helgeland
ProducersJim Van Wyck·Richard Donner

Where to watch

HBO Max Amazon ChannelHBO Max Amazon ChannelNow TV CinemaNow TV CinemaHBO MaxHBO Max
Availability shown for United Kingdom · rights vary by country

Cast · Directed by Richard Donner

MGMel Gibson
Mel Gibson
Jerry Fletcher
JRJulia Roberts
Julia Roberts
Alice Sutton
PSPatrick Stewart
Patrick Stewart
Dr. Jonas
CCCylk Cozart
Cylk Cozart
Agent Lowry
SKSteve Kahan
Steve Kahan
Mr. Wilson
TATerry Alexander
Terry Alexander
Flip
AMAlex McArthur
Alex McArthur
Cynic
RMRod McLachlan
Rod McLachlan
Justice Guard
MPMichael Potts
Michael Potts
Justice Guard
JS
Jim Sterling
Justice Guard
RH
Rich Hebert
Public Works Man
BWBrian J. Williams
Brian J. Williams
Clarke

More from Mel Gibson · Lead actor

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TFI Friday
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More from Julia Roberts · Co-star actress

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Schitt's Creek
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Nature
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Murphy Brown
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Notting Hill
Notting Hill
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More from Richard Donner · Director

Perry Mason
Perry Mason
1957 · 7.7
Ironside
Ironside
1967 · 6.8
Wagon Train
Wagon Train
1957 · 6.6
The Fugitive
The Fugitive
1963 · 7.3
Get Smart
Get Smart
1965 · 8.0
The Twilight Zone
The Twilight Zone
1959 · 8.5
Combat!
Combat!
1962 · 8.0
Have Gun, Will Travel
Have Gun, Will Travel
1957 · 7.3
The Rifleman
The Rifleman
1958 · 7.1
Cannon
Cannon
1971 · 6.7
See all fromRichard Donner

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Conspiracy Theory — streaming FAQ

Which OTT platform streams Conspiracy Theory?

Conspiracy Theory is streaming on HBO Max and Now TV Cinema in United Kingdom, and available to rent or buy on Apple TV Store and Amazon Video. It's not currently on Netflix.

Is Conspiracy Theory on Netflix?

No, Conspiracy Theory is not on Netflix in United Kingdom as of October 2026. It's currently on HBO Max and Now TV Cinema.

Is Conspiracy Theory on Amazon Prime Video?

Conspiracy Theory isn't included with a Prime Video subscription in United Kingdom, but you can rent or buy it on Amazon Video.

Where can I watch Conspiracy Theory for free?

Conspiracy Theory is available on HBO Max and Now TV Cinema in United Kingdom, but you'll need an active subscription — there's no free option right now.