Out of all the Marvel characters, these one's I know the least. I couldn't place what characters were in the trailers. That said, I'm really looking forward to this movie. It's kind of neat to be introduced to a group I have little familiarity with (except Black Knight). The trailer itself looked good, I'm happy it mostly focused on the characters interacting since that's what I'm looking for in these MCU movies (honestly, Thor and Loki in Thor 2 kind of saved the movie for me, so glad they added more of that in Thor 3 especially since we're unlikely to see that in upcoming movies).