After aliens fail to effectively manage their time-space communications devices and botch an attempt to contact rocket scientist Dr. Russell Marvin and his charming wife Carol, they start to destroy Earth targets, suck the knowledge out of military brains, and issue ultimatums. Fortunately, Dr. Marvin and his fellow scientists have a few tricks of their own.

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  1. Donald E. Keyhoe


  2. Bernard Gordon


  3. Fred F. Sears


  4. George Worthing Yates


Top Billed Cast

  1. Hugh Marlowe

    Hugh Marlowe

    Dr. Russell A. Marvin

  2. Joan Taylor

    Joan Taylor

    Carol Marvin

  3. Donald Curtis

    Donald Curtis

    Maj. Huglin, Liason Officer

  4. Morris Ankrum

    Morris Ankrum

    Brig. Gen. John Hanley

  5. John Zaremba

    John Zaremba

    Prof. Kanter

  6. Thomas Browne Henry

    Thomas Browne Henry

    Vice Adm. Enright

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Movie Data


Status Released

Original Language English

Runtime 1h 23m

Budget -

Revenue -

Homepage -

Release Information

  • July 4, 1956
    NR, Theatrical



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