I wonder if Wall Street, back in the 80's, generated a lot of interest in people to work in finance. It's an interesting case since in both cases the point of the movie seems to be to make the person (the startup founder in The Social Network, the corporate raider in Wall Street) out to be the bad guy.

EDIT: Wikipedia: "It has also proven influential in inspiring people to work on Wall Street with Sheen, Douglas, and Stone commenting over the years how people still approach them and say that they became stockbrokers because of their respective characters in the film."