A trailer has been released for the movie Avengers: Doomsday. The trailer reportedly features Robert Downey Jr. as Doctor Doom, although it is unclear if he is the only notable appearance, as some outlets suggest the trailer brings together a large number of characters from the MCU, including possibly Patrick Stewart and Rebecca Romijn. The trailer is available to watch, but details about the movie's plot, including whether it involves the multiverse, are not specified.