^ gotta disagree. like the lizard had absolutely no motivation to become evil. he goes from nice scientist guy to evil monster in one quick scene. the whole "i'm gonna turn the whole world into lizards" comes out nowhere and was uncalled for.
It was a side effect of the syrum though. Even as curt connors he wanted to successfully regenerate limbs and bring that cure to the world but ends up transforming into a lizard with massive power so basically Its the story of a scientist gone mad thinking he's doing the right thing for humanity to become powerful top class lizards like him. I dont see how thats not motivation for the lizard being evil.
a serum turning someone evil is pretty cheap. i think the best comparison would be the first raimi spider-man where a serum turns norman osborn into the green goblin. only with norman, he was already a pretty ruthless businessman and asshole. he was a bad father and only cared about work. then, his corporation and position was threatened by the shareholders who wanted to cut him out. he tested the serum out of desperation and it amplified his evil characteristics. but they were evil characteristics that were already existing in the character before turning into the green goblin.
compared to curt conners who was a nice and friendly scientist who suddenly turns evil. ok, that's kind of like dr. octopus in spider-man 2. only doc ock lost his wife in the accident and that was the straw that broke his back. in his mind, he had to complete his experiment no matter what or else his wife's death would have been in vain. he didn't want to be a villain, he wanted to complete his experiment. he even tells spider-man in their first encounter to stay out of his way. then harry hires doc ock to hunt spider-man and he becomes spider-man enemy. but this was all so he can receive resources to complete his experiment.
curt conners on the other just turns evil. he starts hunting peter parker at his school... why? because he found out that he's spider-man? but WHY does he want to kill off spider-man? what did spider-man ever do to him? if anything, he should thank spider-man/peter parker for giving him the equation to make the serum. it just doesn't work out to me.
they could have played some angle where conners was mocked in the scientific community for his research and thus his true motivation was to prove everyone wrong and say fuck you all. they could have had moments before he turns into the lizard where you can tell he's salty and wants some kind of revenge and recognition (like how they do in Breaking Bad with Walt) but they kind of abandoned that too. i dunno. does this make sense? i'm just typing now.
i'm a huge spider-man fan. i wanted to love this movie and gave it so many chances. and this movie wasn't that bad. i'm cool with them redefining characters and stories because that's what they do in the comics. but saying this was better than the first two, i'd have to disagree.