great casting I first knew about this movie from a friend's recommendation. I love Grey's Anatomy and Izzie is my favorite in it so I wanted to watch Katherine Heigl's previous work. I must say that I was pleasantly surprised by it. While the story is undoubtedly clichéd, the girls' performances were great.
There is one fun fact, though. Danielle Harris played the younger sister but she is actually a year and a half older that Katherine Heigl. I do think it made sense to reverse the girls' roles. Katherine is not only at least a foot taller than Danielle, she is also much prettier. Besides, since they were supposed to have switched bodies, each of them were playing their own age for most of the movie anyway. I think the girls were perfectly cast in this film.