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 Sockpuppets -- 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. IM Db'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 IM Db.

As of April 13th, 2012, 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 - Twelve Angry Men (1957)
8.9 - Schindler's List (1993)
8.8 - The Dark Knight Saga (2008)
8.8 - The Lord of the Rings: The Return of the King (2003)
8.8 - One Flew Over the Cuckoos Nest (1975)

As of May 21, 2012, the 10 lowest rated films (the Bottom 100 list usually has a lot of movies featured on Mystery Science Theater 3000 ) are:

1.3 - Titanic the Legend Goes On (2000)
1.5 - Superbabies: Baby Geniuses 2 (2004)
1.5 - Daniel the Wizard (Daniel - Der Zauberer) (2004)
1.5 - Monster a-Go Go (1965)
1.5 - Manos: The Hands of Fate (1966)
1.5 - Night Train to Mundo Fine (1966)
1.5 - Dream Well (2009)
1.5 - The Skydivers (1963)
1.5 - Ben & Arthur (2002)
1.6 - The Starfighters (1964)