Is Robert Downey Jr training for Avengers: Age of Ultron? You bet he is! A bunch of his training videos for Avengers: Age of Ultron has been posted online and it looks very hardcore.

Fans got real excited as soon as it was confirmed that Robert Downey Jr would return as Tony Stark aka "Iron Man" for Avengers: Age of Ultron. It's amazing to see that while Robert Downey Jr remained very quiet about any details on the film but he has still managed to keep fans excited. A recent video of Robert Downey Jr. in training for his role in Avengers: Age of Ultron was posted online and it shows just how physically demanding being a superhero is.

In the video he is doing the martial art called "Wing Chun" and judging from the video he looks very proficient at it.

While this does not reveal anything about what will take place in Avengers: Age of Ultron, it still manages to up the excitement levels and we cannot wait for the movie to finally drop next year.

"The Avengers: Age of Ultron" will be directed by "Avengers" director Joss Whedon and the original "Avengers" cast will return with Robert Downey Jr as Iron Man, Chris Hemsworth as Thor, Chris Evans as Captain America, Mark Ruffalo as The Hulk, Jeremy Renner as Hawkeye and Scarlett Johansson as The Black Widow. The sequel has added Aaron Taylor-Johnson and Elizabeth Olsen as Quicksilver and Scarlet Witch. Ultron will be voiced by James Spader in the "Avengers: Age of Ultron". Thomas Kretschmann has been cast as Baron Wolfgang von Strucker.

"The Avengers: Age Of Ultron" will open on May 1, 2015.