'Avengers: Doomsday': Reed Richards Confronts Doctor Doom in Hall H Sneak Peek

In the first full trailer for "Avengers: Doomsday," one thing that was notably absent amidst the dramatic shots of the X-Men, Thor and the returning Steve Rogers was what Robert Downey Jr. would sound like as Doctor Doom. That's because it was being saved as an exclusive first look for Hall H attendees at San Diego Comic-Con. After a brief joke Q&A with Ryan Reynolds playing Deadpool - who is apparently NOT going to be making his "Avengers" debut - directors Anthony & Joe Russo rolled a sneak peek of the upcoming film that focused on Victor Von Doom's past with the Fantastic . . .