The introduction of Spider-Man in Captain America: Civil War (and into the Marvel Cinematic Universe proper) was a major beat of the movie.
Captain America: Civil War is in theaters now.
“From the very beginning, we knew if we called something Civil War we were going to have to pay off what we called the ‘splash panel,’ which is that seventeen-minute fight where everyone goes at it.
Ultimately, of course, things worked out and Spider-Man was used to great effect in the big battle between Team Cap and Team Iron Man.