Here are the film's original trailers:
If you need a refresher (or a crash course) in the Marvel continuity leading up to this movie, check out this wonderfully witty summary put together by ScreenCrush:
Corinne mentioned some framing in the movie that seems to reference Star Wars, specifically the grouping of Thor, Rocket, and Groot and how it suggested the heroes packed into the Millenium Falcon. Take a look:
If you're curious as to how some of the Marvel heroes (or at least the actors playing them) might wield the mighty Infinity Gauntlet, wonder no longer:
Unlike his onscreen counterpart, Josh Brolin seems to be a very awesome dude. Here Brolin surprises a fan with a deluxe reproduction of the gauntlet:
We mentioned Dr. Strange's brief career in children's party entertainment. Here's the sketch in question from Jimmy Kimmel:
Kimmel also revealed the one type of villain even the Avengers can't triumph against: mean tweets:
Thanks for listening!