Jennifer Lawrence and Josh Hutcherson Tour 'Hunger Games' Exhibit in NYC

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ET hung out with Hunger Games stars Jennifer Lawrence and Josh Hutcherson as they unveiled a new exhibit dedicated to the franchise in New York City.

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Before heading out on the road to promote the final Hunger Games movie, in theaters Nov. 20, the stars are already looking back at the last several years.

"There's the bow that I hit myself so hard in the chin with that I flew backwards," Jennifer told ET at The Hunger Games Exhibition at Discovery Times Square when she spotted the familiar movie prop.

The exhibit includes costumes, props, photography from the films as well as interactive experiences for attendees. The 24-year-old actress told ET that she got so sentimental while looking at some of the costumes and props that she wanted to keep some of them.

J. Law's movie sister Willow Shields (who plays Prim) gave ET an exclusive tour of the exhibit, which officially opens Wednesday, while dishing on the sisterly relationship that she has with her in real life.

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"She's kind of assured me that the industry is a scary place and yet she's managed to hold her own," Willow said. "She's guided me in a lot of ways."

In the final installment of The Hunger Games franchise, Katniss leads a full-blown revolution against the corrupt capitol and when the dust eventually settles, nothing will ever be the same for Panem.

The Hunger Games: Mockingjay - Part 2 opens Nov. 20.