The Prince and Me falls into two related genres - Romantic Comedy and "Cinderella Story". As a romantic comedy it is just average and includes several cliches that drive me crazy in this genre.
There are MANY romantic comedies where one character has a secret they hide from their love interest. In "Prince and Me" the secret is that "Eddie", the Danish student who shows up one day at the University of Wisconsin (played convincingly by Luke Mably) is actually the Prince and soon to be King of Denmark. (It is extremly convenient for us that all the Danes in the film including the royal family, prime minister, servants and paparazzi all speak English exclusively!) Our heroine, a farm-girl pre-med student, is played by Julia Stiles, and Ms. Stiles continues a budding acting career where she plays women of depth and character. Her Paige Morgan is accepted to Johns Hopkins Medical School around the same time she discovers Eddie is a Prince, and she aspires to work as a Doctor in an underserved country.
Prince Edvard GOES to Wisconsin because he's one of those Euro-trashy princes in the beginning of the movie and he sees an ad for one of those videos where college girls pull their shirts up, and *these* girls happen to be from Wisconsin. Bent on meeting sleazy young girls at the U of W Edvard immediately becomes fixated on the least sleazy, most-principaled woman in sight.
When the scene comes where Paige discovers Eddie is the Crown Prince she doesn't think "hey.... the hunky guy I was just kissing in the library is actually a PRINCE!" Instead she shrieks at him "you lied to me!" (which is only true for those who consider that a lie can include what you don't say - Eddie only tells Paige that he has to "go into the family business" when he returns to Denmark.)
The King is ill at this exact moment and Edvard must jet back to Copenhagen, which leads to one of the better done Romantic Comedy cliche-moments, the one where one character flies off after the lovers have had a tiff, only to have the other character come flying after them on the next plane. (If you think I've given anything away here, you haven't seen many Romantic Comedies.)
The third act begins here as Paige arrives in Denmark, is reunited with Edvard, and begins to contemplate a possible life as Queen of Denmark. During the breakfast where it first dawns on her that this is possible she suddenly looks uncertain. "Do you think the people will mind if I'm the Queen of Denmark and all I've seen is the airport?"
The Cinderella tale gets a thoroughly modern and believable upgrade, and it must have been difficult for Martha Coolidge and the screenwriters to generate the required romantic conflict for the characters who seem to have everything. Paige is not only the girl getting to go to Johns Hopkins, but the Prince falls in love with her too? There's conflict here?
Okay - it's not the best Romantic Comedy ever. But it's not the worst either.