Since I'm old school, graphics don't mean that much to me.
1. Superman -- it is the classic superhero film that laid the foundation for all superhero films to follow
4. V from 'V for Vendetta'
5. Mighty Mouse -- since I liked the cartoons from my era when I was growing up
I changed my password to "incorrect" so whenever I forget it when I try to logon, the computer will say, "Your password is incorrect."