Here are my reasons:
-Harry's temporary amnesia (the most contrived plot device ever)
-Marko running into a particle physics experiment and the scientists commenting "it's just a bird".
-The experiment turning everything into sand except for the locket with his daughter's picture. Why did that not turn to sand either?
-Sandman getting washed away and dissolved in the water and then reconstituting himself and conveniently finding the locket.
-The asteroid crashing to earth right by Peter and MJ with out them noticing it and the black goo randomly sticking onto Pete's moped.
-The absolutely underdeveloped motivation of Sandman robbing banks to help his daughter.
-Harry and MJ doing the Twist. Did this take place in 1955?
-MJ singing
-Peter strutting, pointing at girls, doing pelvic thrusts etc.
-Peter's emo hair style showing that he's now turning evil.
-Peter going on the the date with Gwen and then randomly dancing (I thought he might whip out his flute and start jamming like he's Ron Burgundy from Anchorman) and playing the piano to make MJ jealous.
-The pointlessness of Gwen and her police commissioner father.
-Spider-Man encouraging Gwen to kiss him when he knows that MJ is right there watching.
-Eddie Brock praying for Jesus to kill Peter Parker for getting him fired for his forgeries and going on a date with Gwen
-Peter having such a hard time ripping the black suit off in the church when he had no problem taking it off before.
-Eddie Brock not only being at the same church, but being able to recognize that it was peter from so far away and the black goo conveniently falling on him.
-Eddie getting fangs when Peter did not.
-All of Venom's lines had to be delivered by showing Eddie's face
-Venom and Sandman teaming up was to forced and weird.
-Harry's random butler conveniently waiting til now to tell Harry the truth.
-Harry and Spider-Man teaming up, too predictable.
-Goblin's lame flying snow board.
-Goblin's bombs completely destroying Venom, but only scarring Harry's face.
-Spider-Man forgiving Sandman and Sandman blowing off into the sunset.
-Goblin stepping in front of Spider-man to save him at he last minute.
-Venom's weakness being sound waves from the pipes.
-The British reporter.
Ahahahahah IDOL! I add:
- Captain Stacy that just lift his shoulders seeing his daughter is gonna be to die
- The commentary live during the final battle, i missed to vote by phone who's gonna win
