Joseph Quinn is opening up about the love he and The Fantastic Four: First Steps cast have received from fellow Marvel stars, both for their current film and the highly anticipated Avengers: Doomsday.

Sue Storm actor Vanessa Kirby says Robert Downey, Jr. is doing "amazing work" as Doctor Doom and as the behind-the-scenes leader of the cast

The Fantastic Four: First Steps is out today in cinemas and concludes with two end credits scenes. The post-credits scene shows off the tie-in cartoon of Marvel ’s First Family in their Earth-828 universe. But it’s the mid-credits one that had fans gasping at the introduction of Robert Downey Jr ’s Doctor Doom.