Those more in the know than I are saying this movie is basically big screen Ultimate Spider-Man. The two most common complaints cited among fans seem to be a needlessly-prolonged Spidey origin and the Lizard retaining too much of Connors's intellect. Since I admittedly went in with little hope of satisfaction I was far less disappointed than expected, but I can agree with their gripes - on the origin more than the Lizard. A 100% comic-accurate mammal-hating Lizard mentality, believing himself a separate entity from Dr. Connors, is way too Hulk-like and understandable why they changed it. Regarding Spidey's origin I personally would have much preferred them following TIH 2008's example of a recapped or at least condensed origin sequence. This version wasn't altered enough to warrant such a drawn-out retelling IMHO.