I was compelled to watch this movie because the concept is so original and interesting. Can you fall in love with someone whose physiscal appearance changes everyday? Or: can you truly fall in love with their inner beauty? I thought the idea was amazing and the movie fulfilled my intital expectations in answering those two questions.

That being said, The Beauty Inside raises way more interesting questions (like the value of having your own physical appearance and how we identify as "ourselves" using our face, how people can treat us differently depending on what we look like, etc...) but it doesn't really treat them. I would have liked going a little deeper with the concept, but the movie really focuses on the "love" part. Of course, the format has its limits (it's already 2 hours long) and not all subjects can be treated in just one movie, but it was a little frustrating in my opinion.

The cast for Woo Jin did a very good job at portraying a consistent character, it was easy to believe that all these faces are the same person.
I am not a huge fan of Han Hyo Joo but I thought she did a good job with her character, especially knowing that the struggle she goes through cannot be something relatable and she must have relied on her imagination a lot to understand and portray Yi Soo's feelings.

The movie is certainly an interesting watch with a lovely and moving story, that can make you laugh, tear up and think :)