Another free Movie Idea for you. All you have to do is write it:
Two versions on the same theme:
1) Will Farrell plays a kind of happy, contented everyman. Or, is he? Married, kids, good job, yet he somehow is missing something? He comes in contatct with some guy who, in some public situation, off-handedly makes fun of his name. The new nickname catches on, and through a series of misadventures, causes Will to lose everything. The rest of the movie revolves around him finding out what is really important.
2) Joan Cusack is a woman who is stuck with a terrible name. Really ridiculous. It's caused her to be a social misfit and consumes her to the point where she will only date men whose last name will make her name more bearable. We see a series of these awful dates and see her fall to more and more desperate situations. Of course, she has a male friend who is obviously in love with her, and she him, but, alas, his last name makes her name even worse, so she ignores her feelings for him. In the end, though, she finds out what is really important: love.
There you go, Hollywood. Write 'em up!