Watch Full Movie Online. A sizzling look at the one, the only, J. Edgar Hoover-a man whose very name conjures up images of top level law enforcement and respect. Having served tirelessly as director of the FBI for more than 40 years, J. Edgar's life was chock-full of secret investigations that were as much responsible for preserving freedom and stamping out Communism as any U.S. President that ever served.