In the market Sakharine offers to write a check for the model of the Unicorn using a retractable ballpoint pen (you can even hear the click). Ballpoints were not sold in Belgium or the UK until December 1945 (and came into widespread use in the 1950s) and the retractable ballpoint pen was not invented until 1959. The movie takes place in the early 1930s based on the dates on the newspaper cutouts showing Tintin's reporting.

Film

Le avventure di Tintin - Il segreto dell'Unicorno (2011)

Persone

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SerieTv

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