For many people, Spider-Man: Homecoming ranks as one of the best superhero movies ever made. Not only does the movie provide lots of youthful web-slinging action, but it also represents Spidey’s true arrival in the Marvel Cinematic Universe following his brief preview in Captain America: Civil War. The film’s creators avoided the oft-depicted Spider-Man origin story, instead hopping feet-first into the early days of Spidey’s crimefighting career.
Spider-Man’s backstory is classic, and the multiple iterations of said story over the past half-century have only added to the potential plot details that Homecoming could pilfer. However, the screenwriters involved will no doubt have to judiciously choose which parts of Spider-Man’s past they actually bring to the silver screen. After all, with decades of publishing history, Spider-Man has been through some awful things, and not everything from his youth is appropriate for Hollywood.
In many ways, the early years of Spider-Man serve as an allegory for puberty. While previous movies have played this angle up to a certain extent, none have gone quite as far as the comic books did.
Peter Parker experiences all sorts of strange and unfamiliar bodily changes during his teen years, but spider-powers are nothing compared to the time he sprouted four extra arms. This sudden mutation caused the wall-crawler all sorts of stress, but future films will undoubtedly focus on more “normal” high school problems.
Spider-Man has faced off against plenty of alien threats in his time. However, none posed so specifically awkward a threat as The Prodigy, who attacked Earth in a one-shot issue aimed at warning teens about the dangers of unprotected sex. The Prodigy wanted teens to have children so that their lives would be ruined, which isn’t exactly a nice message for any teen parents to read.
Spider-Man was outraged by this plan, and defeated the invaders single-handedly, doling out bits of wisdom about the importance of abstinence along the way. There really doesn’t need to be any further explanation why something like this is never going to show up in theaters.
The alternative continuity of Ultimate Spider-Man moved at a slower pace, which allowed it to really explore the early years of Spidey’s career. Life as a teenager is hard for most, but when you're a costumed vigilante as well things can get especially complicated.
For example, Ultimate Spider-Man’s adventures attracted the attention of the vivacious Black Cat, (a full-grown adult, several years his senior). She didn't realize their age disparity until Spider-Man took off his mask to go in for a kiss. When it dawned on her that she’d been getting intimate with a teenager, Black Cat puked on Spidey’s crotch. There's really no more visceral way to get rejected.
So, why does a guy who can web-sling around town need a car? The real world answer is that Marvel wanted to sell toy Spider-Mobiles, which forced Spidey’s creators to shoehorn the ridiculous contraption into his stories.
In continuity, Spider-Man’s good friend/frequent antagonist Johnny Storm, AKA The Human Torch, designed the dunebuggy-esque vehicle for his pal. The Spider-Mobile did have some cool features, like the ability to drive on walls, but it was too silly of an idea to stick around for long.