Oldboy (2003)

Korean Memento, more or less. Oh Dae-su, our loud-mouthed drunken lead, is mysteriously kidnapped off of a rainy street and locked in a hotel room for 15 years with nary a word of explanation before being unceremoniously dumped back on the street. He arms himself with a whacking hammer and goes on an exciting manga-inspired comedy-action mission of discovery and revenge. With nothing more than…