Task: Question Answering
Input (English): Context : Desyat Negrityat (Ten Little Niggers, Russian: Десять негритят) is a 1987 Soviet film adaptation of Agatha Christie's novel And Then There Were None It was directed by Stanislav Govorukhin, who also penned the script. 
Question : The Desyat Negrityat is based upon what?
Output (English): Then There Were None