Saw this on AMC the other day, well, I came in late, was interested but had to leave so I got the DVD from the library. Came out in '07, I barely remember hearing about it. It was quite good I thought. Some of it is implausible, one shoot out scene especially just would not have worked the way they portrayed it.
But it did for me what I think a good movie should do, helps one to more vividly consider what this or that piece of reality might actually be like. One reads about child soldiers and blood diamonds but this flick sort of drove some of the weird horror of that scene home for me.
Leonardo DiCaprio was surprisingly good in this I thought and Jennifer Connelly is an intelligent babe, my favorite type. This scene was pretty wild. They just made it out of some city in Sierra Leone that rebels had taken over and were trying to get to safety:
https://www.youtube.com/watch?v=BstunZN_e7g