Are the actors speaking Japanese in Solar Crisis?

Are the actors speaking Japanese in Solar Crisis? - A Woman and a Man Looking at Documents while Sitting on a Couch

I have been watching Solar Crisis (1990) and it seems to be completely dubbed. The mouth movements have that Godzilla-like anti-synchronization.

However, many of the actors, like Charleton Heston, Tim Matheson and Jack Palance are Americans. Are they actually speaking Japanese in the film? If so, does that mean they memorized all their lines in Japanese?






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Are the actors speaking Japanese in Solar Crisis? - A Man and a Woman Talking on a Couch at an Office
Are the actors speaking Japanese in Solar Crisis? - Man in Black Suit Jacket Sitting on Chair
Are the actors speaking Japanese in Solar Crisis? - Man in Black Suit Jacket Holding Man in Black Suit





Japanese reacts to celebrities speaking Japanese




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