The web slinger meets expectations.

Rating: 8/10 (10 May 2007)

The basics of Spiderman 3 is Spiderman (Tobey Maguire) fighting 3 villains, specifically Venom (Topher Grace), the new Green Goblin (James Franco) and Sandman (Thomas Haden Church) while both struggling with his darker side in an alien enhanced costume, and fighting for the love of Mary Jane Watson (Kirsten Dunst). All wrapped up in a complex, segmented story with awe inspiring visual effects. And wouldn't be surprised if Oscar nods comes to Spiderman 3 as with Spiderman 2's Oscar win for best visual effects.
One of the basic components of the movie is Peter Parker struggling with his dark side, which is augmented by an alien symbiont that increased and feeds off of his aggression and hate. But the "where does the costume end and the man begins" concept started before the alien even joined with Peter when he was allowing Spiderman to control his life, that also interfered with his relationship with Mary Jane Watson.
One of the downsides of the movie is that it needs more story support, in other words additional back stories and details to silence the critics. Due to its overall complexity. But in order to do that, they needed to extend the movie's story so much, they would have to have either made Spiderman 3 a 4 hour long movie, or even longer, or split Spiderman 3 into Spiderman's 3 and 4 to effectively tell the complex story.
Even though an extra hour's worth of story telling would have given Spiderman 3 additional support, the "short" 2-1/2 hours did a fine job in getting the basics. Not as good as Lord of the Rings, but much better than X-men: Last Stand, which desperately needed the additional stories to have kept it from sucking.
It even helped with the intro that did a "fast forward" of the first 2 movies to get the audiences up to speed as to what happened in the first 2.
Give the first Spiderman ..... 9/10 Spiderman 2 ..... 10/10 And finally give Spiderman 3 ..... 8.10