Jennifer Lawrence will have to get "security systems" if 'The Hunger Games' is as big as predicted.

The actress - who plays the leading role of Katniss in the eagerly anticipated novel adaptation - admits she was initially dubious about accepting the part because she was aware of how much her life would have to change, but she didn't want to stop herself because of fear.

She said: "If this is as big as it's anticipated to be there will have to be some changes to my life - security systems and all that stuff.

"Now I'm living on the beach without a care in the world. It's a hard thing to think about, your life being completely different. But I didn't want to miss out on something because I was scared."

However, getting into the role once she had taken the part was not too difficult as Jennifer thinks the character is similar to the part she played in 'Winter's Bone' - for which she was nominated for an Oscar.

She added in an interview with Empire magazine: "I do see similarities. They're both young adults who have to deal with responsibility far bigger than themselves and have to bring out a warrior side to care for their family. They're incredibly alike in that way."