James Cameron would not have come back to Terminator 6 without Arnold Schwarzenegger.
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Producer Cameron said he "could not be involved" in the movie without his friend Schwarzenegger.
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Cameron also revealed he wouldn't have put Sarah Connor in the film without Linda Hamilton.
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Hamilton is appearing in her first Terminator movie since 1991's Judgment Day.
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Cameron says Dark Fate will pass the baton to new characters, like Gabriel Luna's Terminator.
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The new film also stars Mackenzie Davis as Grace, a human/cyborg hybrid.
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Terminator: Dark Fate will ignore Terminator 3, Salvation and Genisys.
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It remains to be seen if Cameron, Schwarzenegger and Hamilton can recapture their old magic.
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