Studios deal behind the scenes at The Cannes Film Festival to acquire films and sell existing properties to foreign buyers. Collider is reporting that Lionsgate managed to sell nine of their movies at Cannes, and Lionsgate's press release contains brief synopses for each of the films, including Mockingjay Parts 1 & 2:
In MOCKINGJAY PARTS 1 & 2, we follow heroine Katniss Everdeen’s journey as she leads the districts of Panem in a rebellion against the tyrannical and corrupt Capitol. As the war that will determine the fate of Panem escalates, Katniss must decipher for herself who she can trust and what needs to be done, with everything she cares for in the balance.