The document discusses the purpose and differences between teaser and full movie trailers. A teaser trailer is under 2 minutes and aims to grab attention without revealing plot details, while a full trailer introduces characters and more scenes from the film. The teaser for the example movie shows very little and does not properly reveal characters, whereas the full trailer announces actors and more clearly shown scenes. The teaser represents a dystopian setting caused by humanity, and has a third-party narrator unlike the character narration in the full trailer. The genre of the movie is identified from the teaser as a hybrid of fantasy, sci-fi, drama, action and adventure, set in an alternate 1930s era. The film seems aimed