Genre Research: Murder on the orient express

• The Movie Murder on the Orient Express has the props I wanted to use in this film. This includes a weapon and detective equipment. Also I has the costume I want which is more of a formal look.
• What I like about the movie is that at the end Hercule finds out that all the people on the train were part of the murder.
• What I don't like about this movie is how he sells himself out so he does not get murdered. It has a pretty unsatisfactory ending out of most of the movies that I watched.