[user104658]

Originally Posted by Shaun

I saw Strange for some reason (I say some reason: the reason was Tilda Mother****ing Swinton ) but yeah I assumed he'd have a small part in Infinity War.

He actually has a medium-sized role I would say, it's just that "who he is" is established well enough in his brief scenes in Ragnarok (as he tells Thor the basics of what they're all about) and then the Infinity War role is quite self contained, doesn't reference anything from the Dr Strange movie.

The only ones they refer back to much are Civil War, Guardians and the previous Avengers films, really. Though I still say that Spider-Man Homecoming is important for Spider-Man / Iron Man.