The examples given were "trivial" enough to be closed.

I tried to edit [this question][1] by asking for the significance of the song. (The edit was rejected). The answer was a very good one, because it not only identified the song, but gave the underlying context, about the courtship of a peddler and a girl. I added a comment that perhaps the metaphor could be extended further, to the "courtship" of the Russian and American presidents.

Songs are (usually) put into movies for a reason, and if the question asks for the context/meaning of the song (within the movie) as opposed to "identify" this song, it might be a very good question.

[1]:http://movies.stackexchange.com/questions/31671/what-is-the-name-of-the-russian-song-in-the-season-3-episode-3