It's commonly understood that not all great movies are necessarily great-time movies, and I think we can all agree that not all great-time movies are necessarily "great." (Formally brilliant and historically essential though they are, I'm not sure I could summon the energy to sit through Intolerance or Triumph of the Will again, and while I love Harold & Kumar Go to White Castle to death, you'll never read 2,000 words on it in Cahiers du cinéma.)