Most Similar Movies to The Day of the Dolphin (1973)
If you are looking for movies like The Day of the Dolphin (1973), you might like movies tagged with keyword : thriller, science fiction, animal protagonist, conspiracy, experiment, military, espionage, cold war, ecology, animal rights, scientist, moral dilemma, mystery, 1970s, american film, drama, adventure, training, ocean, secret project .
Backfire (1964), Tinker Tailor Soldier Spy (2011), Callan (1974), The Eiger Sanction (1975), The Black Windmill (1974), Catch Me a Spy (1971), Baadshaho (2017) ... Let's take a look at the following list...

Backfire (1964)
A greedy gold smuggler hires a handsome hero to transport a stolen fortune to a new hideout in this thrilling adventure.
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Tinker Tailor Soldier Spy (2011)
In the bleak days of the Cold War, espionage veteran George Smiley (Gary Oldman) is forced from semi-retirement to uncover a Soviet Agent within MI6.
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Callan (1974)
David Callan top agent/assassin for the S.I.S., was forced to retire because he had lost his nerve. Now, Callan is called back into service to handle the assassination of Schneider, a German businessman. His former boss promises Callan that he'll be returned to active status if he follows orders, but as always Callan refuses to act until he knows why Schneider has bee...Read all
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The Eiger Sanction (1975)
Classical art professor and collector Dr. Jonathan Hemlock, who doubles as a professional assassin, is coerced out of retirement to avenge the murder of an old friend.
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Catch Me a Spy (1971)
Andrej (Kirk Douglas), a smuggler of microfilmed Russian manuscripts, uses the luggage of unsuspecting travellers to transport the contraband out of the country.
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Baadshaho (2017)
An Indian queen asks her bodyguard to steal back gold taken from her by the Indian government during The Emergency period in 1975.
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Three Days of the Condor (1975)
A bookish CIA researcher finds all his co-workers dead, and must outwit those responsible until he figures out who he can really trust.
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Orders to Kill (1958)
American agent faces an engrossing moral dilemma when he is parachuted into France to eliminate a suspected traitor in the French Resistance.
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The Ipcress File (1965)
In London, a counter espionage Agent deals with his own bureaucracy while investigating the kidnapping and brainwashing of British scientists.
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Night Moves (1975)
Los Angeles private investigator Harry Moseby is hired by a client to find her runaway teenage daughter. Moseby tracks the daughter down, only to stumble upon something much more intriguing and sinister.
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Breakheart Pass (1976)
John Deakin is being transported, as a prisoner, on a train with supplies and medicine to Fort Humboldt, Nevada.
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Telefon (1977)
A Russian officer is sent to the U.S. to try and stop sleeper agents who will mindlessly attack government entities when they hear certain coded words.
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Ice Station Zebra (1968)
USN nuclear sub USS Tigerfish must rush to the North Pole to rescue the staff of Drift Ice Station Zebra weather station.
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Clouds Over Europe (1939)
A quirky British Secret Service Agent named Major Hammond tries to discover who is using a secret weapon to steal experimental planes.
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Lancer Spy (1937)
An Englishman impersonates an imprisoned German officer and "returns" to Germany to become a national hero. A female German spy is assigned to check him out but falls in love with him.
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The Kremlin Letter (1970)
During the Cold War a Naval Intelligence officer endowed with a powerful photographic memory is transferred to the CIA to participate in a covert operation in Moscow.
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Action in Arabia (1944)
Reporter Michael Gordon uncovers intrigue in Damascus, where the Allies and Nazis struggle for control of Arab sympathies.
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