While promoting his new film The Judge to Yahoo UK, Robert Downey Jr. answered a few questions about both his past and future as Iron Man.

The actor will reportedly join the cast of 2016's Captain America 3, although neither Marvel nor Downey seems prepared to confirm that just yet. "It sounds very exciting," he said. "If I do [say anything else] I'll just regret it. It's gonna be huge, whatever it is."

Numerous sources have reported that the sequel will kick off an adaptation of Marvel's "Civil War" storyline, in which Tony Stark and Steve Rogers clash over superhero registration.

Downey had a little more to say about the first Iron Man film, which became a surprise hit in the summer of 2008. "At the time we were just trying to launch something that didn't have that great a shot of being a hit," he said. "And now looking back, the way things have happened with Marvel, it was just the beginning of this big business plan."

You can check out the interview below.