RANKED: The 10 worst movies to win the best picture Oscar - and what should have won

Winning the best picture Oscar doesn't just signal that a movie is regarded by Hollywood as the top achievement in the medium for the year; it can help cement a movie's status, with past winners that have gone on to become classics like "The Godfather," "Lawrence of Arabia," and "On the Waterfront."

But the Academy voters don't always get it right. Tucked away in the 88 years of Oscar ceremonies are best picture winners that quickly vanished from the zeitgeist, never to be heard from again. That's often because they weren't as good as originally thought.

It's probably too early to say which of the nine best picture nominees in 2017 - including critical favorites "La La Land," "Moonlight," and "Manchester by the Sea" - will live on in our memories, but here's hoping the Academy doesn't screw this one up.

Here we look back on the 10 most disappointing best picture winners and choose the nominees that should have won: