Robert Downey Jr. And Jeremy Renner Ring NYSE Bell To Promote Avengers: Age Of Ultron

In an effort to further promote Avengers: Age of Ultron, stars Robert Downey Jr. and Jeremy Renner rang the New York Stock Exchange Opening Bell on Monday, April 27.

See three photos from the publicity push below.

In Avengers: Age of Ultron, when Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and Earth's Mightiest Heroes, including Iron Man, Captain America, Thor, The Incredible Hulk, Black Widow and Hawkeye, are put to the ultimate test as the fate of the planet hangs in the balance. As the villainous Ultron emerges, it is up to The Avengers to stop him from enacting his terrible plans, and soon uneasy alliances and unexpected action pave the way for an epic and unique global adventure.

Marvel's Avengers: Age of Ultron stars Robert Downey Jr., who returns as Iron Man, along with Chris Hemsworth as Thor, Mark Ruffalo as Hulk and Chris Evans as Captain America. Together with Scarlett Johansson as Black Widow and Jeremy Renner as Hawkeye, and with the additional support of Don Cheadle as James Rhodes/War Machine, Cobie Smulders as Agent Maria Hill, Stellan Skarsgård as Erik Selvig and Samuel L. Jackson as Nick Fury, the team must reassemble to defeat James Spader as Ultron, a terrifying technological villain hell-bent on human extinction. Along the way, they confront two mysterious and powerful newcomers, Pietro Maximoff, played by Aaron Taylor-Johnson, and Wanda Maximoff, played by Elizabeth Olsen and meet an old friend in a new form when Paul Bettany becomes Vision.

Written and directed by Joss Whedon and produced by Kevin Feige, p.g.a., Marvel's Avengers: Age of Ultron is based on the ever-popular Marvel comic book series The Avengers, first published in 1963.

Avengers: Age of Ultron opens May 1.