Really underrated Gem!
Since being a big fan of Amy Adams I just watched this one without knowing anything about it and was pleasantly surprised. I normally dont like movies with this kind of musical theme. It also had a genuine everyday feeling in it and some great acting.
The only thing that made it seem a little lowbudget was the camerawork (mostly tripod shots) and the office sets who were very studio looking in a bad way.
Finally Amy Adams shines like always and really show how versaitle she is as an actress being able to play both drama and comedy.