Comic-Con kicks off with Marvel's return

Marvel returns to Comic-Con after skipping last year, promoting 'Avengers: Doomsday' premiering in December.

The Russo brothers direct the new film, which brings together heroes and villains from X-Men, Avengers, Black Panther, and Fantastic Four.

DC Studios previews its HBO series 'Lanterns,' starring Kyle Chandler and Aaron Pierre, debuting August 16.

Guillermo del Toro marks the 20th anniversary of 'Pan's Labyrinth' at the festival.

Apple TV offers glimpses of upcoming films 'Mayday' starring Ryan Reynolds and Kenneth Branagh, and 'Matchbox: The Movie' with John Cena and Jessica Biel.