Despite the fact that "Iron Man 3" has been filming for a couple of months now, there's surprisingly little we know about the movie. And it seems as though that's how Marvel executives would like to keep it.

Take for instance "Winter's Bone" actress Dale Dickey, who apparently was cast back when filming began but is only now talking about her involvement. She spilled the news to a local Knoxville, Tennessee blog on July 27, and admitted that she was supposed to keep her involvement hush-hush.

“I'm filming now. That's it," she said. "They asked my agent not to put anything in the trades when I was cast over a month ago, so they are trying to keep as much mystery as possible.”

Now the cat is out of the bag, especially since ComicBookMovie.com found the story and brought it to the Internet's attention. Now that we know she's involved, the best follow-up question is not what character Dickey is playing, but rather why did Marvel try to keep it a secret?

Dickey is credited on IMDb as playing "Mrs. Davis," but that doesn't tell us much about her character. It could be that she plays a pivotal role, even if it does end up being a small one. We're not quite sure what it could be, but it's clear that Marvel didn't want the world to know about her involvement.

For now, we'll have to stick with what we do know about Shane Black's upcoming "Iron Man 3." The film draws inspirationf rom Warren Ellis' "Iron Man" comic book series "Extremis" and stars newcomers Guy Pearce, Rebecca Hall and Ben Kingsley in addition to returning leads Robert Downey Jr., Gwyneth Paltrow, Don Cheadle and Jon Favreau. It was revealed at Comic-Con that Kingsley is playing The Mandarin, while Pearce is portraying scientist Aldrich Killian and Hall is his partner Maya Hansen.

"Iron Man 3" is due in theaters on May 3, 2013.

Who do you think Dickey could be playing? Tell us in the comments section below or on Twitter!