‘Avengers: Doomsday’ Trailer: Russo Brothers Enlist The Entire Marvel Universe In Their Comic Book Return

We have the first official trailer for Avengers: Doomsday.  The trailer teases the arrival of Robert Downey Jr.’s Doctor Doom, one of the most formidable villains in the MCU. “Something’s coming, something we may not be able to deter,” Patrick Stewart’s Professor Xavier says in the clip. “Before this day is done, we will be…