Chief Crazy Horse is a 1955 American CinemaScope Technicolor Western film directed by George Sherman starring Victor Mature, Suzan Ball and John Lund. The film is a fictionalized biography of the Lakota Sioux Chief Crazy Horse. It was also known as "Valley of Fury".

Can we draw the following conclusion?
The film Chief Crazy Horse is an autobiography

Available choices: 1. Yes 2. It's impossible to say 3. No
3.