Most people don't know that this movie is actually a remake of a an Irish movie staring Stuart Townsend entitled "About Adam." I would not have known this myself except for the fact that I watched "About Adam" some years ago.
It's the same basic storyline with few changes, all though I have to say that this version has done a much better job. It's definitely funnier, witter and less boring than the original. They went about it in a very goofy manner, and it paid off. I don't usually like these types of movies, I just wanted to watch it for Byung Hun Lee (whom I adore) but I was pleasantly surprised!
So, if you like light-hearted films that have laughs and gorgeous Korean men, I suggest looking at this one!
And here's the link for "About Adam"