"Even if i am worse than a beast, don't i deserve the right to live?" this summarizes the theme of the movie. it is a humanitarian view on love, sex, "morality", respsonibility (to family and to others) and tolerance.
Oldboy is not about violence, and it is unfair to put this to the same category with fight club. it is about "revenge", that the best revenge end up as forgiving.
it has the best plot of all movies in recent years and it is beautifully made. incredulous yet the director tied all the knot so well that the story is convincing.
i will skip the storyline introduction as there has already been so many reviews and discussions about this.
A MUST see. days after you watched it, the image, the movie, the story will stay in your head.
****spoiler below to illustrate the points above****
on forgiving: -- the movie is about Woojin's revenge, and about Daesu's reflection on how he was turned into a monster of revenge.
-- it is about Woojin's forgiving Daesu and Mido, when he asked Mr Park to keep the box closed
-- it is about the futility of revenge, and wrongness of persistence on revenge, as demonstrated at the remote control scene
-- it is about remorse and the need to always try to see from your enemy's perspective, which is the reason Mrs Yoo (hypnotists) finally agreed to help Daesu
-- it is about letting go of your monster side, as Mido has asked Daesu to do when she suggested running away, and when she prayed for Woojin and Daesu making peace with each other
-- and many more scenes that supports this theme