|This could be on the big-screen now!|
No money exchanged hands, instead it's a true sharing of the character that benefits both Sony and Marvel. Spider-Man will pop-up in a Marvel movie (more and more folk are thinking the "Captain America: Civil War" film) and then afterwards will have his own solo-movie that mostly if not completely ignores the original three films and the most recent re-boot (goodbye, Andrew Garfield, you were actually a pretty good Peter Parker despite overall criticism of the movies).
|"But I was supposed to star in a trilogy!"|
This has moved around the future release date of some other Marvel films, and apparently makes it so that the "Sinister Six" movie will be happening at a later date,but with the new Spider-Man the world will meet in "Civil War" and then follow the adventures of in his own flick. This is exciting and could result in some great story-telling possibilities (Miles Morales would be awesome) but let's be honest about why this happened:
So that everyone at Marvel and Sony can literally bathe themselves in money. So, so much money.