In few other movies is there such "blatant disregard for the conservation of mass," said Katie Duff, one of our readers and a science teacher in Illinois.
To suspend our disbelief, script writers invoke the bite of a genetically modified spider -- an event that grants Peter Parker (aka Spider-Man) a "one-time miracle exemption from the laws of nature," as physicist James Kakalios told NPR. Only then could Spider-Man pull out of extreme dive-bombs, attached to nothing but spidey silk, without breaking a single bone in his superhuman body. Uh, sure.
Two major nerd credits, however, are owed to director Marc Webb. One, he attempted to film as many live-action stunts as possible -- thus preventing unnecessary cheating of physics with computer graphics. Two, he consulted Kakalios to write a math equation of cell regeneration and human mortality, called the "decay rate algorithm," to explain how someone could turn into a giant lizard. The equation is bogus, but Kakalios made it by merging real mathematical expressions, including the Gompertz equation (which describes the probability of living to a particular age) and pieces from a 2001 study titled "The Reliability Theory of Aging and Longevity."
Scientific violation index: Mild