Irt,
The movie "The Ghost and the Darkness" was based on the building of the bridge over the Tsavo River. "Tsavo" means place of slaughter, and yes the movie was based on a true story. I read a book about why those lions were mankillers, and basically the author said man is just another part of the food chain in Africa. The Tsavo lions probably were taught by their parents that people were good to eat, as the place where the bridge was built was a crossing that had been used by slave traders for a couple of hundred years. It became a dumping place for the ones who were too weak or diseased to continue the journey and they either got better or wound up on the menu of lions. The lions in the movies were not the most prolific killers that Africa has ever known. In one area, over 1500 people were killed before the lions were. And they get really smart, eluding hunters with guns while continuing to kill. They make grizzlies look like girl scouts.