It's Peter Parker! Now it's Miles Morales! Miles has a hot dad! Now the Spider-Mans are working together! It's Gwen Stacy! It's Spider-Man Noir and Peni Parker, aka SP//dr, a Japanese teen girl who psychically copilots a mecha suit with a radioactive spider friend! By the way, were you aware that there are a lot of Spider-Man incarnations, because there are A LOT.
What's most exciting about this -- aside from the fact that it's Peter Parker and Miles Morales in the same movie, or that Nic Cage gets to voice a character, or that John Mulaney is Spider-Pig -- is how incredible the animation style is. It's CGI animation that looks like you're flipping pages of a 2D comic book, complete with occasional sound effects and thought bubbles. The animation studio, Sony Pictures Imageworks, created an entirely new style that combines three-dimensional CGI animation with linework and other comic book art techniques to make a completely unique look.
This is one of those times, like with Avatar and The LEGO Batman Movie, where it's pretty much essential to watch it in 3D. The only bad news is that you have to wait until December 14 to see it all.