I remember a movie I think I saw in the 90s on channel Fox 5. I think the movie was from the 80s. It was in English and in color. I remember some humans go into an underground cave. In the cave these little white creatures that have human face come out. I think the face color was either green or red. I think they were like oompa loompas from chocolate factory. Also I remember at the end there was an unexpected ending. The main character I think gets shot and killed. I remember it was on a bus. Please help me find this movie!