Jennifer Lawrence: I'm training hard for Hunger Games role
Due to be released in 2012, the film is based on the novel by Suzanne Collins.
Gary Ross is directing the sci-fi thriller film, which tells of a young girl who takes part in a survival contest in order to save her community.
Liam Hemsworth, Elizabeth Banks and Josh Hutcherson will star alongside Lawrence, who is taking on the lead role.
Speaking to MTV News, The Beaver actress said that although she has been training hard, it has been fun.
She added: "I've done archery for about six weeks, and rock climbing, tree climbing - and combat, running and vaulting. But also yoga and things like that, to stay catlike!"
Lawrence, who was nominated for a best actress Oscar for her role in Winter's Bone, will next be seen in X-Men: First Class.