A Chorus Line, when it functions as a Broadway musical, works fine. Unfortunately, the director and writers forget that occasionally. Then we get the romantic interest/subplot between Zach and his ex. This actually gets in the way once or twice, when a musical number is reduced to background noise while characters have a conversation about the subplot in the foreground. Arrgh. The "Music and the Mirror" piece gets re-adapted for the movie, and not to the better. And "One" gets reprised once or twice too often for my taste (although that's a flaw of the original musical as well). Very entertaining when it sticks to the musical, but loses a point or two on my rating when it moves away from that.