Acting-Auditions is reporting that casting calls have been issued for principal actors and extras on Mockingjay Part 1, confirming earlier reports that production is starting on September 16, 2013 and will shoot in Boston and Atlanta.
From Acting-Auditions:
Color Force/C4 Productions in association with Larger Than Life Productions are in pre-production on the feature film "The Hunger Games: Mockingjay - Part 1". This is the first half of the third installment in the blockbuster hit The Hunger Games trilogy, and will be filmed back-to-back with "The Hunger Games: Mockingjay - Part 2". Shooting will run from September 16, 2013 through May 20, 2014 and will take place in Atlanta, GA and Boston, MA.
Principal actor casting for the main roles will take place in Los Angeles with additional actor casting in Atlanta and Boston. Extras will be cast throughout the entire production in both cities.
Details on how talent can submit for acting roles, and registration information for extras can be found HERE.
Production Weekly just confirmed that 9/16/13 - 5/20/14 production schedule and added Los Angeles as an additional filming location for Mockingjay.