During the Second World War, Hollywood had a mission to direct all of its resources and all of its creative abillities towards the war. Therefore, it all of its individuals were engaged with the purpose of contributing to the fight against the tyranny of Nazism and Fascism through their films. Despite the fact that the USA had joined the war in 1941, American filmmakers, who promoted values like democracy and freedom, were also active in film industry in an earlier period during which they supported Britain and their Ministry of Information. The equivalent of that Ministry in the US was the Office of War Information, which included a special film department also known as the Bureau of Motion Picture. Many famous filmmakers were active mediators between the office of the American president Roosevelt and Hollywood itself, while the others were making films that could make people feel relaxed, make them laugh or convince them that there was a need to join the war. At the time, they were unaware that their works could be the highlights of their careers. Hollywood has greatly contributed to the USA by promoting values like freedom, unity and democracy, but most importantly, it convinced not just the US residents, but everyone in the world, that the values they were fighting for were truly the right ones.