The marketing team for Avengers: Age of Ultron began creating hype for the sequel as soon as the first film was released, 3 years before the sequel hit cinemas. They released pieces of information like a Q&A with cast and a Twitter competition previewing the teaser trailer. When the teaser was officially released, it introduced the antagonist Ultron and included cameo appearances of new characters. Finally, the official poster and full trailer were released, showing the cast and exact release date, generating widespread anticipation from fans of the first film. This extensive marketing strategy was successful in making Age of Ultron one of the biggest films of 2015.