French graphic designer and editor Michael Deleau put together this trailer for all the superhero movies released in 2014. It all combines so naturally and seamlessly that it really highlights how all these movies use the same visual language—albeit with different end results, of course.
I don't see the same visual language being used in all those movies. He's done a great job compositing and putting together the whole thing, albeit it still is a "bunch of random clips behind a track".
Some scenes do have similar camera angles, but i wouldn't call it Same Visual Language.