The Hunger Games' Jennifer Lawrence Compares Katniss to Alien's Ripley
03/19/2011 AT 02:00 PM EDT
Taking on the part of Katniss Everdeen, a fierce and feisty heroine competing in the ultimate game of life-or-death, Lawrence, 20, has extra special, extraterrestrial inspiration for tapping into the "fighting spirit" of her character.
"Sigourney Weaver's Ripley in Alien is the first [movie] that comes to mind," she tells Entertainment Weekly of an older yet similarly famous heroine.
And while she may not be kicking alien-butt in the adaptation of Suzanne Collins's beloved trilogy, Lawrence knows one thing: There's a lot of fans that will want to kick her butt if she doesn't deliver.
"I have a huge responsibility to the fans of this incredible book, and I don't take it lightly," she said Friday. "I will give everything I have to these movies and to this role to make it worthy of Suzanne Collins's masterpiece."
But for fans of the book that are skeptical – perhaps about Lawrence's older age or head of blonde hair – Director Gary Ross tells EW the choice was "the easiest casting decision I ever made in my life ... She came in and read for me, and it just knocked me out." Plus, he says, "we can easily deal with Jennifer's hair color."