109 user 63 critic

Fantastic Voyage (1966)

3:25 | Trailer

Watch Now

From $3.99 on Prime Video

A scientist is nearly assassinated. In order to save him, a submarine is shrunken to microscopic size and injected into his blood stream with a small crew. Problems arise almost as soon as they enter the bloodstream.


Richard Fleischer


Harry Kleiner (screenplay), David Duncan (adaptation) | 2 more credits »
Won 2 Oscars. Another 2 wins & 6 nominations. See more awards »





Complete credited cast:
Stephen Boyd ... Grant
Raquel Welch ... Cora
Edmond O'Brien ... General Carter
Donald Pleasence ... Dr. Michaels
Arthur O'Connell ... Col. Donald Reid
William Redfield ... Capt. Bill Owens
Arthur Kennedy ... Dr. Duval
Jean Del Val ... Jan Benes
Barry Coe ... Communications Aide
Ken Scott ... Secret Service
Shelby Grant ... Nurse
James Brolin ... Technician
Brendan Fitzgerald Brendan Fitzgerald ... Wireless Operator


Scientist Jan Benes, who knows the secret to keeping soldiers shrunken for an indefinite period, escapes from behind the Iron Curtain with the help of CIA agent Grant. While being transferred, their motorcade is attacked. Benes strikes his head, causing a blood clot to form in his brain. Grant is ordered to accompany a group of scientists as they are miniaturized. The crew has one hour to get in Benes's brain, remove the clot and get out. Written by Brian Washington <Sargebri@att.net>

Plot Summary | Plot Synopsis


Four men and one woman on the most fantastic, spectacular and terrifying journey of their lives... See more »

Motion Picture Rating (MPAA)

Rated PG for mild violence and language | See all certifications »

Parents Guide:

View content advisory »






Release Date:

23 September 1966 (Japan) See more »

Also Known As:

Microscopia See more »


Box Office


$5,115,000 (estimated)

Gross USA:

$12,000,000, 31 December 1966
See more on IMDbPro »

Company Credits

Production Co:

Twentieth Century Fox See more »
Show more on IMDbPro »

Technical Specs


Sound Mix:

Mono (Westrex Recording System)


Color (Deluxe) (as De Luxe)

Aspect Ratio:

2.35 : 1
See full technical specs »

Did You Know?


Isaac Asimov was approached to write the novel from the script. He perused the script and declared it to be full of plot holes. Receiving permission to write the book the way he wanted, delays in filming and the speed at which he wrote saw the book appear before the film. See more »


The entire opening sequence is fairly far-fetched. If they were sneaking Benes into the country, it's unlikely they'd do it with sirens blaring, troop transports etc. Even if they did, roads would be closed off for blocks, not allowing a stray car to ram the convoy. See more »


Grant: What happened?
Capt. Bill Owens: Dr. Michaels... went berserk.
Grant: Berserk nothing!
Dr. Michaels: Grant, help! Get me out!
Grant: [hands SCUBA gear to Owens] Get this on, quick. If a window blows, we'll lose this air lock.
Dr. Michaels: Grant, help. I'm trapped. Help me!
[Grant struggles to free Michaels as he grows increasingly agitated]
Dr. Michaels: Can't get my... can't get my hands out. Get me out of here. My... my hands are trapped. Can't move... can't move my hands. I can't move my ha... move my hands. Can't move my hands! Get my out! Get me out of here!
See more »

Alternate Versions

The DVD edition has the following prologue: "The makers of this film are indebted to the many doctors, technicians and research scientists, whose knowledge and insight helped guide this production" The TV/Video version features this prologue instead: "This film will take you where no one has ever been before; no eye witness has actually seen what you are about to see. But in this world of ours where going to the moon will soon be upon us and where the most incredible things are happening all around us, someday, perhaps tomorrow, the fantastic events you are about to see can and will take place." See more »


Referenced in Mystery Science Theater 3000: The Mad Monster (1989) See more »

Frequently Asked Questions

See more »

User Reviews

This voyage is still fantastic and doesn't require any remakes…
13 January 2015 | by CoventrySee all my reviews

When I was a young lad, approximately 10 years of age, I was a tremendous big fan of a Sci-Fi comedy called "Innerspace", released in 1987 and starring Dennis Quaid and Martin Short. Little did I know back then that this movie was inspired and also - knowing the director Joe Dante – paying tribute to the 1966 groundbreaking adventure "Fantastic Voyage". You won't hear me state that this is a flawless masterpiece, or even that the special effects and visuals still look mesmerizing by today's standards, but it definitely still stands as one of the most imaginative and original Sci-Fi adventures ever made. The plot and futuristic world perspective of "Fantastic Voyage" are quite ambitious and grotesque, even for contemporary sixties standards, but that is probably what makes it so unique. I'm sure that, back in 1966, certain people honestly assumed that this type of scientific technology would be possible around the year 2000. The story actually is typical Sci- Fi fodder, only… completely different! Numerous movies of its kind revolve on an elite crew going on a dangerous expedition into the unfamiliar territories of outer space. Well, "Fantastic Voyage" revolves on an elite crew going on a dangerous expedition into the unfamiliar territories of INNER space! The titular fantastic voyage is, in fact, a journey inside the human body. When diplomat Jan Benes is nearly assassinated, a five-headed crew (2 doctors, a female assistant, a pilot and a safety guard) and their especially designed submarine are urgently miniaturized and injected into his comatose body in order to neutralize a lethal blood knot from inside his brains. They only have 60 minutes before the current miniaturization techniques abruptly stop working and they grow back to their normal size, so it's absolutely essential to succeed their mission because the patient is the only person who knows the secret to expand the miniaturization time! Okay, admittedly this last aspect of the plot is somewhat tacky, but don't allow it to ruin the fun! The biggest accomplishment of "Fantastic Voyage" is that Richard Fleischer, and of course his cast and crew, succeed in making our everyday human body equally mysterious and menacing as the outskirts of space … and even more so! The landscapes of the heart are more ominous than desolate planets, the cyclones in the lungs or tidal waves in the ear are heavy ordeals and our bodies' defense mechanisms are more aggressive than aliens. The story simultaneously also focuses on the search for a saboteur among the crew members, although it's fairly obvious from the beginning who this is (especially if you're a bit familiar with the oeuvres of the players). Raquel Welch's role is rather redundant, but she looks nice in her tight uniforms and her male colleagues were offered the unique occasion to fondle her boobs during one particular scene. Reading other reviews and posts on the message board around here, it seems that many people want this film to receive a remake. I, for one, don't agree. I would hate to see a fully computerized version of this film and will always prefer the charm and old-fashioned skills of classic Sci-Fi.

5 of 6 people found this review helpful.  Was this review helpful to you? | Report this
Review this title | See all 109 user reviews »

Contribute to This Page

Stream Action and Adventure Titles With Prime Video

Explore popular action and adventure titles available to stream with Prime Video.

Start your free trial

Recently Viewed