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Jennifer Lawrence reveals co-star Liam Hemsworth has 'changed her life'

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Liam Hemsworth, left, and Jennifer Lawrence arrive at the Los Angeles premiere of "The Hunger Games: Mockingjay - Part 1" at the Nokia Theatre (Photo by Matt Sayles/Invision/AP)

Liam Hemsworth, left, and Jennifer Lawrence arrive at the Los Angeles premiere of "The Hunger Games: Mockingjay - Part 1" at the Nokia Theatre (Photo by Matt Sayles/Invision/AP)

Matt Sayles/Invision/AP

Jennifer Lawrence stars in The Hunger Games: Mockingjay Part 1

Jennifer Lawrence stars in The Hunger Games: Mockingjay Part 1

Actress Jennifer Lawrence

Actress Jennifer Lawrence

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Jennifer Lawrence with her hunger Games co-stars Liam Hemsworth, and Josh Hutcherson

Jennifer Lawrence with her hunger Games co-stars Liam Hemsworth, and Josh Hutcherson

Getty Images

Jennifer Lawrence arrives at the Los Angeles premiere of "The Hunger Games: Mockingjay - Part 1" at the Nokia Theatre L.A. Live in Los Angeles (Photo by Jordan Strauss/Invision/AP)

Jennifer Lawrence arrives at the Los Angeles premiere of "The Hunger Games: Mockingjay - Part 1" at the Nokia Theatre L.A. Live in Los Angeles (Photo by Jordan Strauss/Invision/AP)

Jordan Strauss/Invision/AP

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Liam Hemsworth, left, and Jennifer Lawrence arrive at the Los Angeles premiere of "The Hunger Games: Mockingjay - Part 1" at the Nokia Theatre (Photo by Matt Sayles/Invision/AP)

Jennifer Lawrence says Liam Hemsworth changed her life.

The stars appear alongside each other in The Hunger Games franchise and have grown close off set, too. She denies rumours of a romance but does acknowledge that the gorgeous Australian actor has been good for her.

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Actress Jennifer Lawrence

Actress Jennifer Lawrence

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Actress Jennifer Lawrence

"He changed my life. That was very important for me and my personal development," she smiled to German magazine Bravo.

In The Hunger Games, 24-year-old Jennifer plays Katniss Everdeen, who is stuck in a love triangle with Liam's Gale Hawthorne and Josh Hutcherson's Peeta Mellark.

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Jennifer Lawrence with her hunger Games co-stars Liam Hemsworth, and Josh Hutcherson

Jennifer Lawrence with her hunger Games co-stars Liam Hemsworth, and Josh Hutcherson

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Jennifer Lawrence with her hunger Games co-stars Liam Hemsworth, and Josh Hutcherson

Lucky Jennifer even shares a kiss with Liam in the movies - but unlike many of his fans, puckering up with the Australian hunk left her cold.

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She wore a bodycon Antonio Berardi dress before her David Letterman appearance

She wore a bodycon Antonio Berardi dress before her David Letterman appearance

She wore a bodycon Antonio Berardi dress before her David Letterman appearance

"To be honest, I didn't even think about it. I ate a mustard sandwich with onions beforehand!" she laughed.

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Some might question how the Oscar winner can be so close to someone so good looking without feeling anything. It's something even she is a little surprised about.

"It really IS possible," she smiled. "Liam is the most wonderful, kind, sweet, funny guy in the world."

She added the star taught her how to act fairly in situations, as he's so nice to everyone. But he also toughened her up a little, showing her how to stick up for herself and negotiate.

"It's my biggest weakness: negotiating. I'm a wimp about standing up for myself and Liam is always fair. He's always on time, he's always doing his job, and he's good about making sure that things stay fair. He's teaching me to toughen up a little bit," she recently told Nylon.

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