Like me. Watch Oldboy. Don't read the reviews or the plot summary. Just rent it.
Like any movie it's got flaws. And like any person you're going to have some complaints.
I found out about this movie a week ago and placed it at the top of my Netflix cue (I'm giving Netflix another try after they were delaying my movies on purpose because I watch 3 movies a day) and was totally blown away. It was released in 2003 (The States Release Date) and given lots of hype at Sundance. Apparently lots of people know about it (minus me). My friend Espy, even told me that by now the movie is "passe."
As a warning, the first 20 minutes is kind of snoozy but it's engrossing from there.
If you are turned off or agitated by violence don't rent this movie & don't say I didn't warn you. I'm more of drama movie watcher. But a thriller/mystery/action movie is awesome when it's well done.