According to Marvel Studios president Kevin Feige--who is, after all, in a position to know these things--production on the film is still months away from beginning, though...so those of you who figured they had to give us a casting announcement soon lest they be stuck with no cast when the movie is ready to start--not so much.
"The only footage of Ant-Man is the test footage which I and Edgar showed to Comic Con. We start filming that next summer," Feige told the French cinema magazine Reviewer when asked about the smaller and more obscure properties that Marvel is developing right now. "Guardians of the Galaxy, we just finished filming that like a week ago. It is really a very special movie for us at Marvel. We love those characters, we believe in that storyline. Nobody’s ever heard of it, which is in some ways liberating. The way many people had never heard of Iron Man before the first Iron Man movie. So we’re excited to find ourselves sort in the same creative state of mind we were on Iron Man 1. Which is to say : ‘How do we best introduce those characters that most people don’t know, and bring them to a big audience ?’ What James Gunn has done, both in his script and directing the cast... The cast that has been assembled is one that we’re very proud of. The footage looks incredible. People who stay after the credits in Thor: The Dark World will see the initial glimpse of that world."
Of course, Thor: The Dark World director Alan Taylor didn't seem all that happy, earlier this week, when people mentioned that to him. He made sure to credit Gunn with shooting the scene and did his best to distance himself from both the way it was shot and the decision to attach it to his film.