So someone actually did some research and determined that Sony actually did some last minute recutting the past few weeks and took out the "Untold Story" of Spidey which they had been advertising. Sounds like they got cold feet at the last minute not wanting to upset fans.
http://badassdigest.com/2012/07/05/w...ng-spider-man/
"Months ago I told you guys that I heard rumors that The Amazing Spider-Man would be making a simple, but huge, change to Spider-Man’s origin. No longer would the spider bite change Peter Parker into a superhero. Rather, the spider bite would activate something already within him that would make him a superhero.
This is not reflected in the final movie. Sort of. The hints of it are still there, and when you add in deleted elements that snuck into the marketing you can see the shape of the thing where it once existed.............."