Hotel Rwanda is one of the best movies I have seen in a long time. I thought that it was not only good, but important. I was impressed by Don Cheadle. I think that it is doing poorly at the box office for some of the same reasons nobody did anything to stop the genocide in Rwanda - they don't really care about it and it is depressing. Leonard Maltin says:

Nothing kills audience interest in a movie more quickly than being told the film is “important.” Even writer-director Terry George, who spent years of his life bringing this astonishing story to the screen, understood the risk of making a message movie about the Rwandan massacre of 1994. He was smart enough to focus on one man, Paul Rusesabagina, and he scored a bull’s-eye by casting Don Cheadle to play him.