The director's use of vivid colors and meticulous production design contributes to the film's intense and claustrophobic atmosphere. Each scene is carefully crafted to reflect Oh Dae-su's emotional state, making the viewer experience his journey of despair, determination, and ultimately, redemption.

When searching for the "best" version of Oldboy , viewers often stumble upon two distinct iterations: the 2003 Korean original and the 2013 Hollywood remake directed by Spike Lee starring Josh Brolin.

In 2023, for the film's 20th anniversary, the distribution company Neon supervised a breathtaking of Oldboy , remastered from the original camera negative under the direct supervision of Park Chan-wook.