Corrected entry: At the end of the movie, when Val Kilmer is on the bridge and the lion jumps up, how is he able to out run the lion by crossing the bridge and climbing a tree. Lions can run much faster than humans and he should have been fatally wounded before he got to the end of the bridge.
Corrected entry: When the Kilmer and Douglas characters find the lions' lair, there are bones and skulls everywhere. All the bones and skulls were clean for the most part. It was said in the film that the lions were killing the people just for sport and not for food, so how did the bones get so clean and free of eyeballs, etc. And it's not bugs or decomposition, or the bones on top would not be so clean.
Correction: The skeletons in the cave were killed for food, as evidenced by the fact that they were taken to the lair. The lions killed the railway workers for sport and left the victims where they lay.
Correction: I take it you don't know this for sure, you're just going on basic facts of lions. The lions (the Ghost and the Darkness) are Tsavo lions and are unusually slower than other species of lions (it's been proven on numerous occasions). Val Kilmer (with the head start that he had) would have been able to outrun that lion, not by much, but it's possible.