For one cross-branding minute, The Avengers and Amazing Spider-Man would exist on screen together. Latino Review found out during the press day for Spider-Man that for a brief second, the Oscorp tower would appear in the same skyline as Stark Tower in Avengers. It wasn't due to fan request, marketing tie-ins or even an attempt at cross-promotion between Sony and Disney.
It was thanks to the happy accident that J. Michael Riva was the production designer, among a number of films, on Spider-Man and the Iron Man films.
"That design overlap, and the stunning look of the Oscorp Tower (seriously stunning) was enough for Marvel Studios and Sony to have the discussion about inserting Oscorp into The Avengers skyline. The Unified Marvel Manhattan Skyline almost existed.
By the time the Oscorp building was fully designed, The Avengers digital Manhattan was already basically rendered and there was some up-conversion that needed to go down, so - for timing - it was scrapped.
BUT - Sony and Disney were going to let this happen. THAT's the key thing here. Timing just didn't work out."
This would be the first time since X-Men that a Mighty Marvel Team-Up could remotely occur. Granted, the X-Men footage was a little off-kilter:
via Bleeding Cool