Avengers: Age of Ultron (2015)

While the second Avengers flick was rather disappointing, its trailer certainly showed that the superhero team found their match – James Spader’s Ultron sent shivers down our spine. It also helped seeing the new additions (Scarlet Witch and Quicksilver), though we did have to wait a bit longer to catch the first glimpse at Vision.

But what really makes this the best superhero trailer of our modern times is the battle between Hulk and Hulkbuster – we had no idea why they fought, but we certainly wanted to see more!