Marvel Studios officially announces the development of Avengers: Age of Ultron, the sequel to the 2012 film The Avengers.
Principal photography for Avengers: Age of Ultron begins with filming taking place in Johannesburg, South Africa.
The world premiere of Avengers: Age of Ultron takes place in Los Angeles, California, marking the film's debut to audiences and critics.
Avengers: Age of Ultron is released in theaters worldwide, becoming part of the Marvel Cinematic Universe Phase Two.