Clooney crashes 'Tomorrowland' panel

Actor George Clooney and his wife, attorney Amal Alamuddin, stand on a taxi boat on the Grand Canal in Venice, Italy, on Sunday, September 28. Clooney and Alamuddin married in Venice the previous day at a private ceremony attended by celebrities.

Clooney climbs aboard a taxi boat as he leaves the Hotel Cipriani in Venice on the day of his wedding, Saturday, September 27.

Anna Wintour, Vogue magazine's editor-in-chief, and Bruce Bozzi Jr., the executive vice president of the Palm Restaurant Group, arrive to the private ceremony on September 27. The wedding was marked with a star-studded bash at the Aman Canal Grande Venice resort, housed in the 16th-century Palazzo Papadopoli. Guests arrived via taxi boat.

Actor Richard Kind arrives for the wedding.

Actor Bill Murray and Samantha Barry, CNN's senior director of social news, arrive for the wedding.

Model Cindy Crawford, right, boards a taxi boat with her husband, Randy Gerber, and other guests.

Actor Matt Damon boards a taxi boat at the Hotel Cipriani.

Guests attend a cocktail party at the Hotel Cipriani before the wedding.

U2 frontman Bono arrives at the Hotel Cipriani.

The former mayor of Rome, Walter Veltroni, and his wife, Flavia Prisco, arrive for the wedding.

Clooney and Alamuddin arrive in Venice on Friday, September 26.

• George Clooney promotes "Tomorrowland" at New York Comic Con


• Actor "spending my honeymoon at Comic Con" for film


• Movie is directed by Brad Bird


• Clooney married Amal Alamuddin last month

(CNN) -- Sure hope Amal isn't upset.

George Clooney took an apparent break from his honeymoon with Amal Alamuddin to make a surprise appearance Thursday at New York Comic Con. The actor, who was there to talk about his role in next summer's "Tomorrowland," admitted he wondered himself what he was doing there.

"It is not lost on me that I am spending my honeymoon at Comic Con," said Clooney, according to several reports from the event.

Marriage seems to be treating Clooney well so far. He kept the crowd entertained with one-liners and enthusiasm.

Nodding to co-star Hugh Laurie, who played Dr. Gregory House on "House," Clooney issued a challenge to other actors who played doctors on television. (Clooney played Dr. Doug Ross on "ER.")

"We were all over the world -- Hugh and I got to get in trouble in the Bahamas, it was fun. Two former television doctors! Bring on that McSteamy guy! We'll take 'em all on, them TV doctors," he said.

And noting his quick appearance in the "Tomorrowland" trailer, Clooney worked up a phony bluster.

"What the hell, that's it? We've been waiting for this thing for a year and a half and that's it?" he said. "I'm so barely in the teaser! I don't want to have to say, I'm a big star!"

"Tomorrowland," directed by Brad Bird ("The Incredibles") and written by Bird and Damon Lindelof, opens in May 2015.