Watched this last night on Netflix.
Holy shit, what a powerful movie. Extremely graphic and brutal portrayal of what the children of West Africa civil war have faced.
What I found amazing was the acting of these children. Almost to the point where it was "docomentari'ish" instead of a scripted, acted movie.
Idris Elba's (I got the name right this time) portrayal of his character was award winning.
I found this review to be quite accurate.