From Guy Ritchie:

"I've always been surprised that no other movie has ever been called Revolver because it just sounds cool. So I like the name, but I also like the concept that, if you're in a game, it keeps revolving until you realize that you are in a game and then maybe you can start evolving"

Source - http://www.moviesonline.ca/movienews_13426.htmlFrom Guy Ritchie:

I've always been surprised that no other movie has ever been called Revolver because it just sounds cool. So I like the name, but I also like the concept that, if you're in a game, it keeps revolving until you realize that you are in a game and then maybe you can start evolving.