Chemisty
There wasn't any. There was not any indication in dialogue or action of an attraction between the leads until the last 15 minutes of the movie. The characters actually seemed to have developed mutual respect and a professional friendship that seemed much more believable than the romance. I mean, you knew it was going there (I've seen My Fair Lady and read Pygmalion, too,) but it certainly did seem tacked on. That's not to say that I didn't enjoy this little piece of fluff...it had some smart dialogue and interesting minor plot twists.