I used to love that movie Adventures in Babysitting with Elizabeth Shue. Tonight I watched the movie The Sitter with Jonah Hill. It's the same movie, 15 or 20 years later, except a boy is the babysitter and not a girl. It's a pretty good plot line in terms of a money maker--bring in some young person who has nothing to do on a Saturday night and get him or her to babysit some messed up kids and you've got a movie. I wasn't expecting The Sitter to be any good, but I was pleasantly surprised. I like that Jonah Hill.
Personal anecdote: the kids I used to babysit are all grown up now. One graduated high school last year and his sister is graduating at the end of this month. Man, time flies.