It has not aged well. Very strange attitudes toward sex here. Judy Holliday was 33 when she made this film, her character is naive and innocent to a ridiculous degree. Jack Lemmon's character played by anyone else would have been an unbearable jackass, but he's quite lovable, if a bit too prudish. It's a bit of Values Dissonance for sure. The romance between Jack Lemmon and Judy Holliday isn't developed well, though the actors are nothing but charming--I'd like to have just a picture of Judy and Jack falling in love, with more scenes like their romance and fewer scenes with the stupid fame storyline. The screenplay feels like a first draft--it's sad when the central conceit of the film is more tiresome than than the side plots.
I wanted to like this, but it really wasn't good.