Marvel Studios unveiled a thrilling first look at ‘Avengers: Doomsday’ at CinemaCon, featuring Robert Downey Jr. as the villainous Doctor Doom. The trailer showcased an unprecedented crossover of Avengers, X-Men, and Fantastic Four, hinting at a massive conflict. Key moments included Gambit vs. Shang-Chi and Captain America’s surprising return, igniting immense fan excitement for the ambitious project.