Oldboy
Holy shit.
The ending is predictable, yet it still blows your mind. It's stretched out, but in the best way possible. You think its over? The director says "no" and hits you even harder.
The main character is both a great father and a badass. I also loved his look throughout the film.
The fight scenes are amazing. They are brutal, intense, and incredibly satisfying.
I recommend it to everyone.