Instruct: Classify a given review into positive or negative sentiment.
Query: Unexpected substitutions

I'm very disappointed that they chose to substitute different artists for some of the songs. I really liked the version of "Hallelujah" in the movie, and the version sung by Rufus Wainwright just isn't the same. I don't understand why they didn't use the original artists, or at least put some sort of warning on the cover.