Filming is underway on The Hunger Games: Catching Fire, so the inevitable set photos have begun to leak out.  The first leaked images don't show anything revelatory except that Jennifer Lawrence, Josh Hutcherson, and Sam Claflin hit the gym a lot, and it's really paying dividends.

Hit the jump to check out the images.  The film also stars Liam Hemsworth, Jeffrey Wright, Tony Shalhoub, Philip Seymour Hoffman, Jena Malone, Amanda Plummer, Lynn Cohen, Bruno Gunn, Alan Ritchson, E. Roger Mitchell, Meta Golding, Elizabeth Banks, Donald Sutherland, and Woody HarrelsonThe Hunger Games: Catching Fire opens November 22, 2013.

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Here's the official synopsis for The Hunger Games: Catching Fire:

THE HUNGER GAMES: CATCHING FIRE begins as Katniss Everdeen has returned home safe after winning the 74th Annual Hunger Games along with fellow tribute Peeta Mellark. Winning means that they must turn around and leave their family and close friends, embarking on a “Victor’s Tour” of the districts. Along the way Katniss senses that a rebellion is simmering, but the Capitol is still very much in control as President Snow prepares the 75th Annual Hunger Games (The Quarter Quell) – a competition that could change Panem forever.