Completely different but from the same director and writer Takeshi Kitano. Both movies has similar feel to it.

Monstar reminds me so much of love in disguise... The plot is very similar in the way that a star goes to school and falls for a girl who in the beginning dislikes him and likes another guy.

They're both creepy movies that have a lot of gore...Both of them will give you chills, and, possibly, even nightmares...

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.