We know that the Hulk will be taking on Hulkbuster Iron Man in The Avengers 2.
For those that were lucky enough to be at this past Summer's Comic-Con, they got a taste of the battle.
Concept art featuring the goliaths has also been released.
Now check out a cool fan-made Hulkbuster Iron Man test shot.
It's really well done, and the YouTube user says it's a work in progress.
"The Avengers: Age Of Ultron" hits May 1, 2015 directed by Joss Whedon starring Robert Downey Jr., Chris Evans, Chris Hemsworth, Scarlett Johansson, Mark Ruffalo, Jeremy Renner, Samuel L. Jackson, Elizabeth Olsen as Scarlet Witch, Aaron Taylor-Johnson as Quicksilver, Paul Bettany as Vision, with James Spader as Ultron.
Head on over to the Cosmic Book News Avengers movie hub for more.