It's been a long wait for the new Avengers: Doomsday trailer. A strange sentiment considering that the clip was unveiled to audiences at CinemaCon, but since the studio opted against releasing it online, all fans could do was read the inevitable footage descriptions and breakdowns designed to give us all an inkling of what might actually have happened in it. Based on those alone, the new trailer is a must-see - which is why it's all the most frustrating for the fans who have not, in fact, seen it.