I just viewed 2010 for the second time (after a gap of years) yesterday, it may not be a classic like its predecessor, but just a 6.7 rating? Seriously??
The scene where Lithgow fights his fear of heights made me feel like I was there. Amazing stuff.

That said, some of the movies, like Justin Beiber's never give up, twilight and hunger games have their own cult increasing the rating on other review sites by clicking from multiple IP's.

Don't forget to add Bollywood slop to that list. Most Bollywood flicks are grossly over-rated by hyperventilating fans. While other countries are increasingly questioning religion, we're building temples for our movie stars. ;D