IMDb

The Internet Movie Database, a website that records every movie ever released, along with television series and episodes, video games, actors, voice actors, major characters, and so on and so forth. Each movie has its own forums, and these forums are often plagued by Trolls and Sock Puppets -- particularly the "Politics" and "Soapbox" subforums, which are troll-magnets.

Users can give 1-10 grades to movies. After the death of Heath Ledger, many users pre-emptively gave The Dark Knight a perfect 10 rating, while at the same time giving perennial high rankers such as The Godfather a rating of 1. Prior to the release of The Twilight Saga: New Moon the more avid of the Twilight Fan Dumb gave mass ratings of 10 to the film before it even came to theaters, luckily /b/ was there to even it out with a healthy dose of 1s without even seeing it. IMDb's averaging algorithm is designed to compensate for this kind of behaviour to an extent.

Oh, and to remind everyone, we are not trying to emulate IMDb.

As of December 31, 2013, the ten highest rated films (scale of 1 - 10) are:

9.2 - The Shawshank Redemption (1994)
9.2 - The Godfather (1972)
9.0 - The Godfather: Part II (1974)
8.9 - Pulp Fiction (1994)
8.9 - The Good, the Bad and the Ugly (1966)
8.9 - The Dark Knight (2008)
8.9 - 12 Angry Men (1957)
8.9 - Schindler's List (1993)
8.8 - The Lord of the Rings: The Return of the King (2003)
8.8 - Fight Club (1999)

As of December 31, 2013, the 10 lowest rated films (the Bottom 100 list usually has a lot of movies featured on Mystery Science Theater 3000) are:

1.8 - Final Justice (1985)
1.8 - Superbabies: Baby Geniuses 2 (2004)
1.8 - Keloglan vs. the Black Prince (2006)
1.8 - Die Hard Dracula (1998)
1.8 - Disaster Movie (2008)
1.8 - Manos: The Hands of Fate (1966)
1.8 - Invasion of the Neptune Men (1961)
1.8 - The Hottie and The Nottie (2008)
1.9 - Going Overboard (1989)
1.9 - Birdemic: Shock and Terror (2010)