Avengers: Age of Ultron stars Robert Downey Jr. and Mark Ruffalo are both busy filming the movie and they had a special treat for their Twitter followers as they posted several pictures showcasing the film's set as the legendary Hulk actor Lou Ferrigno is set to voice the Green Goliath once again.

Both Iron Man and the Incredible Hulk actors tweeted pictures from their Twitter accounts showcasing the Avengers: Age of Ultron set, Scarlett Johansson, executive producer Jeremy Latcham and a selfie of both of them together.

So how did Marvel studios respond to this? Well, judging from the replies from the tweets Ruffalo has sent to them, they were less than enthusiastic about it.

In other news, TV's "Incredible Hulk" star Lou Ferrigno returns to voice "the strongest one there is" in the sequel. Lou Ferrigano is no stranger to the Hulk character as he voiced many of the animated shows that Hulk has been into such as The Avengers: Earth's Mightiest Heroes, Avengers Assemble, and Hulk and the Agents of S.M.A.S.H. Although voicing the Hulk again is no surprise for Marvel fans, there could be some hint that Ruffalo will provide more speaking lines in sequel, out performing what he did in the first Avengers movie, even though it's a one liner. Director Joss Whedon jokingly hinted that the Avenger's least successful live-action protagonist will become an "Avengers scene-stealer," just like Loki.

Can we expect more Avengers 2 set pictures from Robert Downey Jr. and Mark Ruffalo? We'll find out soon enough.