The Groundstar Conspiracy is your average spy thriller with George Peppard as the ruthless investigator from an unnamed government agency and Michael Sarrazin as a scientist who is the only survivor of a lab explosion at a top secret US space program called Groundstar. Peppard knows that Sarrazin is not who he says he is. But how did he get clearance in the place, what may or may not have been taken from the lab that the explosion covered up are the questions Peppard has answers for. Because Sarrazin's memory has been wiped clean.The key character in The Groundstar Conspiracy is Peppard as a ruthless government investigator, a man who could be J. Edgar Hoover if given half a chance. That title phrase comes from Peppard's mouth who would like to bug every bedroom in the country for security's sake, better to ferret out would be subversives.Of course Peppard plugs up his security leak, but Sarrazin, freedom, and Sarrazin's freedom pay a price.The Groundstar Conspiracy has some interesting notions to put forth, but the productions values are pretty skimpy. Christine Belford as a woman that Peppard's using to keep tabs on Sarrazin has her role very poorly defined. The players do their best, but the film's general mediocrity weighs heavily on their work.

This is a movie as easy to watch as to forget but it's quite entertaining.The story is very far-fetched,but in this kind of spy thriller including amnesia ,mysterious conspiracies and who-the-Hell am I? subject,it's the rule of the game.George Peppard tries hard to be evil but he does not always succeed;Michael Sarrazin is the perfect victim/culprit (God only knows) .The love story may seem derivative and it is,but there are enough unexpected twists to sustain interest throughout.The working title ("the plastic man" ) was perhaps a better choice than "The Groundstar Conspiracy "but it might have been a spoiler.

Lamont Johnson worked a lot in television but he also directed some interesting films that should be better known; A Covenant with Death, The McKenzie Break, The Last American Hero, You'll Like My Mother and Lipstick. (Even Spacehunter: Adventures in the Forbidden Zone has its felicities!) The Groundstar Conspiracy is a low budget but fast moving thriller with a few twists and turns until the tense ending. All the elements of music, photography and dialogue are pulled together neatly to serve the narrative's momentum.The plot may strain a little at the edges but the film is helped along by some good acting. Michael Sarrazin as the accused man is convincing. You can feel his terror and his bewilderment. Sarrazin's face helps, it looks beat about and haunted. George Peppard as the government man gives one of his best performances. A real hard case, driven almost by paranoia, single minded and ready to do anything to keep the state secure. Christine Belford and Cliff Potts are good too. It's a good little film.

This movie isn't really interesting in itself: the plot is far-fetched, the characters are wooden and the action scenes probably would have been considered dull even when the movie was made. Nevertheless a very interesting picture for anyone interested in early-seventies interiors, fashion, hairstyles, etc.: for me, being thirty-something, it was a feast of recognition :-)P.S. Don't forget to listen to the soundtrack.