Avengers: Age of Ultron was released in 3D.
Avengers: Age of Ultron . While in post production , the film was converted to 3D and over 3,000 visual effects shots were added . Avengers : Age of Ultron premiered in Los Angeles on April 13 , 2015 , and was released on May 1 , 2015 , in North America , in 3D and IMAX 3D .