When asked by a fan if she shed a tear during the film, she tweeted back: "Yes. and i also remember my fist going into the air.....
"By far the most emotional of the 3 films. it really is a masterpiece [sic]."
Meanwhile, Jennifer recently admitted that she "fangirled" when Lorde arrived on the film's set.
She said: "I completely fanned out. 'Is she here? Is she here? Is she here? She's here? Cool. Got a picture with her.
"It was a huge deal. Everybody goes quiet while at the same time tries to be cool."
Jennifer's co-stars, Liam Hemsworth and Josh Hutcherson, also revealed that the 24-year-old actress couldn't stop "screaming" and was "the most excited person there".
- Bang! Showbiz