Everything you need to know about the leaked Avengers: Doomsday trailer

Avengers: Endgame is still one of the highest-grossing movies of all time. But since then, the Marvel Cinematic Universe has lost a bit of its luster, with box office returns shrinking year after year. Marvel will try to turn this around with next year’s Avengers: Doomsday, which will feature franchise mainstay Robert Downey Jr. (Iron Man) returning in a new role: the villainous Doctor Doom.