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The Groundstar Conspiracy (1972)

A government investigator tries to find out the truth behind the break-in at a top secret research facility.


Lamont Johnson


Leslie P. Davies (novel) (as L.P. Davies), Douglas Heyes (screenplay) (as Matthew Howard)




Cast overview, first billed only:
George Peppard ... Tuxan
Michael Sarrazin ... John David Welles / Peter Bellamy
Christine Belford ... Nicole Devon
Cliff Potts ... Carl Mosely
James Olson ... Sen. Stanton
Tim O'Connor ... Frank Gossage
James McEachin ... Bender
Alan Oppenheimer ... Gen. Hackett
Roger Dressler Roger Dressler ... Charlie Kitchen
Ty Haller Ty Haller ... Henshaw
Anna Hagan ... Dr. Plover (as Anna Hagen)
Hagan Beggs Hagan Beggs ... Dr. Hager (as Hagen Beggs)
John Destry John Destry ... Zabrinski (as John Destry Adams)
Milos Zatovic Milos Zatovic ... Dr. Zahl
Don Granbery ... Technician (as Don Granberry)


A break-in and sabotage attempt occurs at a top secret research institute and the culprit is cornered and captured. The problem is that he's been badly injured and claims to have lost his memory entirely. A cat-and-mouse game ensues between investigator Tuxan, the mystery intruder Welles and the people who sent him on the mission. Written by Col Needham <col@imdb.com>

Plot Summary | Add Synopsis


only if you like gripping suspense and surprise endings...


PG | See all certifications »

Did You Know?


In 1968, Shashi Kapoor attempted to turn producer with a English movie. Satyajit Ray was to direct the film. It was titled "The Alien" , starring Shashi Kapoor in the lead. The finances did not work out. In 1981 the project was restarted. Satyajit Ray collaborated with a Hollywood producers Leonard M.Tillen and Roshani Engineer. The film would now be titled "The Avatar". It was about a UFO that lands in a tiny village in West Benegal and how the villagers react to it. A leading Hollywood actor was to star in the film. See more »


It is assumed that the saboteur has the secret data memorized in his brain, because he has seen it while copying it from a computer to tape reels. In reality, if you know what files you want, you can copy them on magnetic tape without studying their contents. This was also true in 1972. See more »


Tuxan: Yes, gentlemen - I tap my own phone.
See more »


Referenced in Lovelace (2013) See more »

User Reviews

Not That Bad
10 December 2006 | by BachlorinParadiseSee all my reviews

Just re-saw The Groundstar Conspiracy after some 20 something years. Always been a big fan of both George Peppard and Micheal Sarrazin, so I was looking forward to this flick. Somewhat out-dated today, but for 1972, it wasn't all that bad. There are twists and turns. Plots and subplots. Action, suspense, drama, and even a little romance thrown in. Humor, at least a few lines, would of helped a lot here. There is a nice surprise sort of ending. Clearly this is not a masterpiece of a cold war thriller like The Spy Who Can In From The Cold or The Ipcress File, but The Goundstar Conspiracy is a nice little entertaining film. George Peppard looked great here and Micheal Sarrazin was in his prime. It's not their best roles, but if you're a fan. it's a good way to spend a rainy night.

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Canada | USA



Release Date:

21 June 1972 (USA) See more »

Also Known As:

The Plastic Man See more »

Filming Locations:

British Columbia, Canada See more »


Box Office

Gross USA:

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Company Credits

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Technical Specs


Sound Mix:

Mono (Westrex Recording System)


Color (Technicolor)

Aspect Ratio:

2.35 : 1
See full technical specs »

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