MOVIE
The Greatest Power
Drama
Miriam Monroe and John Conrad are two young scientific workers who, 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.
Top cast
Ethel BarrymoreMiriam Monroe
William B. DavidsonJohn Conrad
Harry NorthrupAlbert Bernard (as Harry S. Northrup)
Frank CurrierRandolph Monroe- William BlackBradford Duncan
- Cecil OwenEric Johansen
Frederick TruesdellProf. Poole (as Fred C. Truesdell)- Redfield ClarkeMaj. Gen. Foster (as Redfield Clark)
- Rudolph De CordovaWilliams
- W.M. ArmstrongCapt. Herbert
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Not currently available on the supported providers in EG.
Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 13 Jul 2026.