For me, it had to be the 1935 version of The Last Days of Pompeii. I didn't actually see the film, but when I was only five or six years old (1954) the movie was going to be featured on Saturday night TV. I saw the previews around supper time in which the Pompeiians were running through the streets while Vesuvius erupted. Some of them were on fire. That night I awoke in terror from a Technicolor nightmare in which I was a victim of the disaster. It took my mother about an hour to calm me down and get me to go back to bed. 
"The world is my country; all of humanity are my brethren; and to do good deeds is my religion." (Thomas Paine)
