both movies are about acceptance, letting go, and saying goodbye.

Two stories about growing up and moving on You are the apple of my eye is a guy chasing girl, while So young is about a girl chasing guy

Similar Approach to the world of plastic surgery and loving yourself for the way you are. Happiness does not come from doctors, comes from within. Both women are troubled with their men and undergoes plastic surgery to receive more happiness from the opposite sex.

Both deal with curses and have similar themes of a never-ending curse.

They both have a similar feel as the main leads encounter identical situations. Stephen Chow directs one and he's the lead actor in another.

They are both inspired from the same manga.

They both have Super Junior members. I don't think I have to say anything else.

Both about big sisters trying to keep their families from getting torn apart. Both fun and heartbreaking.

Both are about teens dealing with heart diseases and both have romance in it.