"I'm a huge fan of the books and the movie, so I'm very excited to be involved," the 52-year-old star enthusiastically told E! News at the Carrie premiere in Hollywood on Monday.
What's more, the Oscar nominee noted that her two children, 15-year-old Caleb and 11-year-old Liv, are also pretty "psyched" that their mom will be starring as President Alma Coin in The Hunger Games: Mockingjay Parts 1 & 2.
It was announced last month that Moore would be joining the Mockingjay cast.
The second installment in the series, Catching Fire, opens wide Nov. 22.
Meanwhile, Mockingjay Part 1 is slated to be released Nov. 21, 2014, with the trilogy coming to an end on Nov. 20, 2015, when Part 2 caps off the action.