What we said: Robert Downey Jr. and a host of actors from Marvel's "Avengers" -- including new Hulk Mark Ruffalo -- made an unannounced appearance on the

Comic-Con stage. Landing somewhere between a tent revival and a Who concert, the event elicited 6,000 flashing cameras and almost as many high-volume cheers. "I've had a dream all my life, and it was not this good," said director Joss Whedon as he took the microphone.

The fans whooped loudest for Downey and gave plenty of love to unannounced Comic-Con guests Samuel L. Jackson and Scarlett Johansson. The reaction was more muted, at least comparatively, for Ruffalo, who replaces the fan-approved Edward Norton.