Aaron Johnson and Elizabeth Olsen are still in negotiations to star, but no character details have been revealed quite yet. We reported earlier this month that Breaking Bad star Bryan Cranston is also in talks to join the cast.
Gareth Edwards is directing from a screenplay that is currently being rewritten by The Walking Dead creator Frank Darabont. David S. Goyer (The Dark Knight Rises) and Drew Pearce (Iron Man 3) wrote previous drafts of the script. Thomas Tull, Jon Jashni, and Mary Parent are producing for Legendary.
We reported in December that production was scheduled to begin in March, but that was before Frank Darabont came aboard last month to rewrite the script. Our report from earlier this month indicated that Legendary wanted to get its cast secured in order for production to start on time, but it hasn't been confirmed that they are still aiming to begin shooting next month.