A weak musical propped up by a strong cast with only the title number a stand out from a mediocre crop of songs.
I don't know much about the musical and matrimonial partnership of Nora Bayes and Jack Norworth, but I doubt this movie give is an accurate representation. A previous reviewer noted that Norworth was the 2nd of Baynes five husbands, their union ending in divorce, somewhat souring with fact the sugary, idealistic portrayal of their partnership in this biopic.
Jack Carson and Dennis Morgan made a number of satisfying films together - this is not one of them.
Also, there's a pretty awful song about how dumb one of the characters is. Meant in fun, maybe, but less than rewarding in execution.