[Teaser Trailer] Avengers: Age Of Ultron' (Video/Pics)

The countdown to what will probably be the biggest blockbuster film of 2015 has officially started. Marvel Entertainment has rolled out the first trailer for Avengers: Age of Ultron.

Watch as Ultron seeks to destroy the superheroes and the rest of the world in this exciting first clip.

The countdown to what will probably be the biggest blockbuster film of 2015 has officially started. Marvel Entertainment has rolled out the first trailer for Avengers: Age of Ultron.

 Once again Josh Whedon sits in the directors chair. Samuel L. Jackson (Nick Fury), Robery Downey Jr. (Tony Stark/ Iron Man), Chris Evans (Steve Rogers/ Captain America), Mark Ruffalo (Bruce Banner/ The Hulk) Scarlett Johansson (Natasha Romanoff/ Black Widow), Chris Hemsworth (Thor) and Jeremy Renner (Clint Barton/ Hawkeye) reprise their roles from 2012's box office smash

 Watch as Ultron seeks to destroy the superheroes and the rest of the world in this exciting first clip.