Jena Malone just welcomed a baby boy. The Hunger Games: Catching Fire actress announced on Instagram Tuesday that she has officially become a new mom to son Ode Mountain DeLorenzo Malone with her boyfriend, photographer Ethan DeLorenzo. The 31-year-old star gushed on social media, "The best weekend of our lives!!!" Her beau also took to Instagram to share a candid video of the pair cradling their son swathed in a dog-printed onesie and hat.