I'm so geeking out. This looks like it will be the best popcorn popper of the year.
I do feel a bit sorry for Black Widow in the second-last scene of the trailer. All the superheroes, backed up against each other, looking for the direction the attack will come from. Ironman in his walking suit of weaponised armour, Thor with his mighty hammer, Captain America with his inpenetrable shield, Hawkeye with his mean-looking bow...
...and Black Widow with her crappy little popgun
She does kinda make up for it in this scene: