Jennifer Lawrence was her usual awesome self (We so didn't mind when she wiped her nose on the tablecloth). Josh Hutcherson was as giddy as ever and Liam Hemsworth was, well, HOT! Joining them on stage were co-star Willow Shields, director Francis Lawrence and producer Nina Jacobson.
The last day of shooting wasn't, as expected, very easy. "That night," Jennifer said, "we held each other and slept like puppies."
She added, "You guys challenged me. I love you."
With that, here we give you five more things you need to know about the Mockingjay panel…
1. Sneak Peek: Francis Lawrence not only showed the first trailer for the movie once, but twice. It's epic. It's everything you want it to be. You'll get chills when you hear Katniss say, "Tonight, turn your weapons to the Capitol. Turn your weapons to Snow."
2. Whistle While You Work: Liam proved he could whistle like the mockingjays when the cast was asked by a fan to show off their whistlin' skills. J-Law's whistle was, well, a bit weak. Josh, on the other hand, does an amazing squirrel impersonation.
3. Scene Stealer: Jennifer admitted she couldn't think of her favorite scene from the franchise. "I'm blacking out," she said, before adding, "The truth is there is one but it's in [Part 2] and I don't want to blow it [for the fans]."
4. Sporty Spice: Do not refer to Katniss' weapon of choice as a crossbow, as moderator Conan O'Brien did. "It's not a crossbow. It's a longbow," Jen explained to the late-night talk show host. "Crossbows are easy...I didn't do months and months of training to be called a crossbowwer."
5. Guy-on-Guy Games: Liam joked that he and Josh share a kiss in Part 2—at least we think he was joking. More on that later!
Mockingjay - Part 2 is in theaters Nov. 20.
PS: We'll have a lot more of Jen, Liam and Josh tomorrow right here at E! Online and on E! News at 7 p.m. and 11 p.m.