Word Jazz has an interesting post about how translation relates to language change, starting with an example with how Asterix comics portray speakers of other languages:
As part of the comedy, and generally to get over a sense of Englishness in a film where all characters speak fluent French, the British characters all speak in a particular way. At one point Jolitorax, the Briton sent to Gaul to seek help in resisting the Romans, asks Asterix for a barrel of ‘magique potion’. Anyone who has studied French at school will get the joke. In French, of course, most adjectives get postposed: that is, they come after the noun. Jolitorax, however, preposes the adjective as would happen in English. Obelix, can’t believe it. He asks his English cousin:
‘Pourquoi tu parles á l’envers!?’
[‘Why are you speaking back-to-front!?’]
[…] And English idioms, which don’t exist in French, are directly calqued. As in the comic, Jolitorax says things like ‘je dis!’ (‘I say!’), ‘secouons-nous les mains’ (‘let’s shake hands’), and ‘et toute cette sorte de choses’ (‘and all that sort of thing’), which don’t exist in French.
Such language play is not only a feature of Asterix and Obelix. I remember watching a cartoon as a kid, in English but set in France, where characters would say things like ‘what is it that it is?’ – an obviously French-sounding calque of ‘qu’est-ce que c’est?’.