New answers tagged film-industry
Dubbing is easy. Dubs are supposed to use mouth movements as keys, so as to make it easier to follow. As such, delivery, meanings, and words change. TV Tropes calls it Lip Lock. Badly done dubs don't follow the lip movement, resulting in "Cat Talk" (Phrased used to describe older badly dubbed Kung Fu movies, where the characters move their lips longer than ...
That's a method used to add camera shake (as @Catija suggested). The anti-shake features present on the cameras would otherwise make the effect have to be done in post-production, which is far more expensive.
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