Red Herring

The expression “red herring” refers to a strategy by misleading people from the real matter by distracting them or the most important details of the situation. Red herring is usually seen in films that have like an adventure to it.  Usually the truth is a killer or a robber but the film tries to make sure that the audience think that its something different until the very end.

This could lead to some of the films Alfred Hitchcock has made as some of his stories, the audience think that a character is one person but it all changes at the end when she unravel the truth. e.g. Psycho. In this film a man acts like his mothers alive but at the end of the scene the audience find out that his acting for himself and his mother.