If you've ever studied Hamlet, then you're already pretty familiar with the idea of a story within a story. In the Prince of Denmark's case it's The Mousetrap, a play within a play, but in Singin'...

So, uh, what's the deal with the 13-minute modern ballet sequence that has seemingly nothing to do with the rest of the movie? The Real World: HollywoodFirst of all, the "Broadway Melody Ballet" ha...