I am trying to find the name of a movie I remember watching about 20 years ago. The story line was about a young girl and her brother who are adopted by a couple and the girl named "Cat" starts hurting her brother and killing birds and such. She keeps a steak knife in the foot of her teddy bear. Does anyone know the name of this movie?

Child of Rage (http://www.youtube.com/watch?v=oRoUi673lz8)

Thanks for the help but this isn't it. The gilr "Cat" is between 8 and 10 years of age and the movie I am looking for isn't a horror movie.

Child of Rage isn't a horror movie, and if fits your description exactly...

From IMDb user reviews for
Child of Rage (http://www.imdb.com/title/tt0103955/usercomments?start=10):

"A loving couple adopts two children, both who are seemingly sweet but just a little bit odd. The younger boy, Eric, seems quiet, withdrawn and just sort of walks around in a daze all've the time. The older girl, Catherine or "Cat", seems nice and helpful, but every now and then she has these...mood swings. Nobody can explain them, but suddenly Cat is constantly tearing apart the house, beating her brother, sticking the dog with needles, threatening to kill her parents, and on and on."

"This movie is based on a true story about a minister and his wife who adopt two children who have been abused. Their adopted daughter has an attachment disorder which makes her unable to have empathy for others. She displays acts of violence (she pushes her brother down the stairs and hides a knife in her teddy bear to kill her parents with), but psychologists fail to see what is really wrong with her."

Thank you so much adolf_hilfiger child of rage is the movie I am looking for. Thank you!! 1

Woo-hoo! You're welcome.