Spider-Man 2002 – Swinging into the   

  How did the filmmakers create Spider-Man's web-slinging scenes?

The exact science behind the genetically modified spider that bites Peter is not fully explained in the film.

Spider-Man explores themes of responsibility, personal growth, and the balance between power and responsibility.

An alternate ending could involve Peter Parker choosing to use his powers for personal gain, leading to a darker path for the character.