Many of the lists on WatchMojo are very inaccurate, usually due to the fact that they forget some important things on the list. I find the lists to be incorrect, particularly some of the top picks. They literally chose The Social Network to be the No. 1 movie of the century (so far). Maybe The Social Network is a very good movie, but it definitely doesn't deserve to be labeled as the No. 1 movie of the century (so far)!
Besides, a lot of their picks are overrated when choosing certain movies. They refuse to analyze other important films and only pick the ones they want/like. I don't even watch WatchMojo a lot because they clearly won't educate me in any way.