"Avengers: Age of Ultron" will bring the Marvel Universe's biggest heroes together again to face one of their biggest villains, with "Marvel's The Avengers" director Joss Whedon returning to write and direct the sequel. "Marvel's The Avengers" was released in 2012 and went on to earn $1.5 billion worldwide, making it the third-largest grossing movie of all time.
The sequel arrives in theaters May 1, 2015 and stars Robert Downey Jr., Mark Ruffalo, Chris Hemsworth, Chris Evans, Scarlett Johansson, Samuel L. Jackson, Colbie Smulders, Elizabeth Olsen, Aaron Taylor-Johnson, James Spader and Thomas Kretschmann.