Robert Downey Jr. and Mark Ruffalo began sharing images from the set of Avengers: Age of Ultron. While Downey’s image didn’t reveal much, Ruffalo ended up apologizing to Marvel for sharing his.

Downey, who stars as Tony Stark, shared a picture of himself with executive producer Jeremy Latcham, both wearing yellow construction site jackets. “You asked for it! My first tweet from the set of Avengers: Age of Ultron with exec producer @jlatcham,” Downey wrote, revealing absolutely nothing about the project.

As for Ruffalo, who plays Bruce Banner/The Hulk, he shared pictures on Twitter, Instagram and Tumblr, covering as much of the social media spectrum as he can. In total, Ruffalo shared three pictures - Scarlett Johansson’s chair, Johansson in a Black Widow boxer’s robe and one with him and Downey together.

CinemaBlend reports that all this sharing got Marvel executives a little annoyed with Ruffalo, who responded to one of his tweets by yelling, “Maaaarrrrrrrk.”

Ruffalo replied “I adore you,” to which Marvel added, “Flattery will get you nowhere! Probably. Maybe. *looks the other way*.”

Eventually, Ruffalo agreed to stop, tweeting, “I'm sorry @marvel. I will be better. I'm like your black sheep Avenger.”

Age of Ultron opens on May 1, 2015. On-set photos that revealed a bit more were released back in March.

images via Twitter from Robert Downey Jr and Mark Ruffalo