The Greatest Power (1917)


Edwin Carewe, Edward LeSaint (as Edward J. Le Saint)


Albert S. Le Vino (scenario) (as Albert Shelby Le Vino), Louis Wolheim (story) (as Louis R. Wolheim)


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Cast overview:
Ethel Barrymore ... Miriam Monroe
William B. Davidson ... John Conrad
Harry Northrup ... Albert Bernard (as Harry S. Northrup)
Frank Currier ... Randolph Monroe
William Black William Black ... Bradford Duncan
Cecil Owen Cecil Owen ... Eric Johansen
Frederick Truesdell ... Prof. Poole (as Fred C. Truesdell)
Redfield Clarke Redfield Clarke ... Maj. Gen. Foster (as Redfield Clark)
Rudolph De Cordova Rudolph De Cordova ... Williams
W.M. Armstrong W.M. Armstrong ... Capt. Herbert


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Release Date:

18 June 1917 (USA) See more »

Also Known As:

Her Greatest Power See more »

Filming Locations:

Long Island, New York, USA

Company Credits

Production Co:

Rolfe Photoplays See more »
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Technical Specs

Sound Mix:


Aspect Ratio:

1.33 : 1
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User Reviews

The Greatest Power (1917) -- Tragic Loss
1 July 2015 | by mpickfordfanSee all my reviews

Two young scientific workers, Miriam Monroe ( Ethel Barrymore ) and John Conrad ( William B. Davidson ) independently of each other, have discovered a chemical called exonite. Miriam discovered it while searching for a cure for cancer, while Conrad used it as a basis for a powerful explosive. When Conrad points out to her that its use could bring about world peace, Miriam works with him to perfect the formula. After Miriam's father, Randolph Monroe ( Frank Currier ), the head of a great corporation, receives news that the country is threatened by war, he and his partner, Albert Bernard ( Harry S. Northrup ), consider exonite for government use but Conrad, still professing peace, refuses to give up his formula for the purposes of war. Miriam, refusing to take no for an answer, steals into the lab to procure the formula, where she finds Bernard, actually a German spy, attempting to obtain the chemical for his government. After a struggle, Bernard is captured by secret service agents, and Conrad agrees to give the formula to his country.

This 1917 drama starring Ethel Barrymore, was produced by Rolfe Photoplays and filmed on locations in Long Island, New York. The loss of this film remains a tragic one for fans of silent cinema.

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