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Gammera the Invincible
- Jier: 1966
- Lân: United States of America, Japan
- Sjenre: Horror, Science Fiction, Action
- Studio: World Entertainment Corp., Harris Associates, Ross-Gaffney, Inc., Titan Productions, Inc., Daiei Film
- Keyword: japan, monster, giant monster, turtle, rampage, alternate version, kaiju, gamera (giant turtle), tokusatsu
- Direkteur: Sandy Howard, 湯浅憲明
- Cast: Albert Dekker, Brian Donlevy, Diane Findlay, John Baragrey, Dick O'Neill, 船越英二