Usual subtitles and dubbing appeared only in the mid-30’s, and between 1929 and 1935 there was an unusual phenomenon – multilingual versions of one film, the practice of completely replicating films in different languages.
When shooting films intended for international rentals, Hollywood actors had to play the same scenes several times – in English, Spanish, French and German. As not all actors knew foreign languages, they simply learned by heart the phrases of dialogues before another double