Audiences may struggle to see Robert Downey Jr. as a villain in Avengers: Doomsday. Downey Jr.'s acting style will need to change to fit the role of Doctor Doom. Doctor Doom should kill an MCU hero early in the film to establish him as a serious threat.

Robert Downey Jr.'s return to the MCU as Doctor Doom may not end after his appearance in Marvel Studios' long-awaited Avengers: Secret Wars.

The Fantastic Four are kicking off a new phase of the Marvel Cinematic Universe. Mister Fantastic, Invisible Woman, Human Torch and The Thing are back - as The Fantastic Four return to cinema screens later this year.