Thor: The Dark World is not a sequel.
Thor: The Dark World . It is the sequel to 2011 's Thor and the eighth film in the Marvel Cinematic Universe . Development of Thor : The Dark World began in April 2011 , when producer Kevin Feige announced plans for a sequel to follow the crossover film The Avengers . Thor (film) . A sequel , Thor : The Dark World , was released on November 8 , 2013 .