The actress, who stars as heroine Katniss Everdeen in the big-screen adaptation of Suzanne Collins's young adult dystopian trilogy, said that while she is more comfortable in more independent films, she joined the franchise as she became invested in the message behind the story.
In an interview with The Coventry Telegraph, Lawrence explained: "When I was doing indies and people were asking me why I don't do a studio film, I always said the size of the film doesn't matter. What matters is the script, the story and telling a story you care about.
"The Hunger Games was a story I cared about, but I wasn't going to do it because of the size of it. The books are important for our generation to read. We live in a world that's obsessed with reality television and it's completely desensitised us to the shock factor. People's tragedies are used for entertainment - the more tragic, the higher ratings and more entertaining it is."
The 21-year-old added: "The size of the film definitely made me pause - because it's life-changing. But I don't want to pass on something just because I'm scared."
Lawrence was recently cleared to film the sequels to both The Hunger Games and X-Men, negating previous reports of a schedule conflict.
Watch Digital Spy's Hunger Games interview with Jennifer Lawrence below:
The Hunger Games photo gallery - view pictures from the movie below: