A source tells us at that the top three names being bantered about right now are Armie Hammer, Taylor Kitsch and Garrett Hedlund.

The source also says that a final decision from the studio may be announced as early as this week.

However, another source says the studio may also be looking at unknowns à la Brad Pitt in Thelma & Louise.

Filming is scheduled to begin in the fall with Francis Lawrence taking over the directing reigns from Gary Ross.

Catching Fire will be released on Nov. 22, 2013.