AceShowbiz -

The First Day of San Diego Comic Con has been filled with a panel of "Tron Legacy" among others. And Walt Disney Pictures did not only bring the main cast but also show a new trailer for the film during the presentation.

The video opens with a preview to a moment in the past between Sam Flynn and his father Kevin. It then jumps to the present when Sam has grown up and got information about where his lost father might be in. The rest of the video sees footage from world of fierce programs and gladiatorial games.

During the Q&A session, the actors shared about their experience joining the film, particularly talking about the updated, uber-sleek Tron suits. "The suits were amazing. They are totally revolutionary and were an honor to wear," Olivia Wilde who plays Quorra gushed. Director Joe Kosinski then added, "It was so cool seeing all of the suits come on at once... you forgot to act!"

Garrett Hedlund who plays Sam, Jeff Bridges who returns as Kevin, Michael Sheen who reprises his role as Caster, and producer Bruce Boxleitner also made appearance at the panel.

Serving as the follow-up to 1982 "Tron", "Tron Legacy" is made in 3-D and will hit U.S. theaters on December 17.