Yes, 2009 has had many mediocre box office baits, but the article highlights some gems, mostly of the indie nature. The film that gets the top honors is the Coen Brothers' A Serious Man. Other films on the "best" list include the critically acclaimed The Hurt Locker and Two Lovers.
Hmmm, films that are considered the worst: well, Transformers 2 is one (I never can remember the entire name). Good job, CNN.