A new movie celebrates the true story of a U.S. Marine's fight to adopt her hero dog who was injured alongside her during a mission in Iraq.

In the movie, a young Marine corporal played by Kate Mara bonds with an aggressive K9 dog, Rex, and together they save many lives during over their more than 100  missions together.

The real-life retired Marine, Megan Leavey, and her bomb-sniffing dog were wounded on a mission to look for "improvised explosive devices" (IEDs).

After Leavey was sent back to America without her beloved dog, she fought the military to adopt Rex, who along with her was suffering from PTSD and was considered unfit for release. They have now been reunited for eight months, she said on "Fox & Friends" today. 

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"We've been through a lot together," Leavey said. "It is amazing. I'm so lucky. I'm grateful."

Leavey, who deployed twice with Rex, said she hopes the film with bring attention to the military working dog community.

Leavey, an avid Yankees fan who now works for the team, and Rex were honored at Yankee Stadium, where the movie premiered.

She said she spent eight months with Rex after the adoption was finally approved and before he passed away in Dec. 2012. 

"Megan Leavey" hits theaters Friday.

Watch the full interview above and the movie trailer below. 

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