CinemaCon: Fox Reveals 'X-Men' Opening, First Footage of David Fincher's 'Gone Girl'

New footage of "Dawn of the Planet of the Apes" and Matthew Vaughn's "Secret Service" also screened during Thursday's packed presentation.

LAS VEGAS -- Fox pulled out all the stops for its Thursday morning presentation, packing it with new footage from films including X-Men: Days of Future Past, Dawn of the Planet of the Apes, Gone Girl and Matthew Vaughn's Secret Service. The studio also brought stars Cameron Diaz and Shailene Woodley to the stage.

Ester Dean and B.o.B opened the presentation with a performance of their song from Rio 2, "Take You to Rio," surrounded by dozens of bikini- and feather-clad samba dancers.

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"Ever seen samba dancers before at 10 o'clock in the morning?" Chris Aronson, 20th Century Fox president of domestic distribution, told the crowd after the fun number.

Right at the top of the show, Aronson made a reference to National Association of Theatre Owners president and CEO John Fithian's comments that 12 Years a Slave was "too unequivocally intense" to watch on the big screen, and that he instead watched Fox Searchlight's Oscar-winning film at home.

"We are excited to offer everything from intense epic adventures to equally thrilling comedies to intense dramas -- all of which are films that are meant to be seen in the best possible venue, your cinemas," he said.

There was plenty of new footage presented during Fox's strong presentation, including the opening scene from the upcoming X-Men ensemble pic and scenes from Dawn of the Planet of the Apes, David Fincher's Gone Girl and Secret Service, starring Colin Firth.

The opening of X-Men was set in a dark warehouse where Kitty Pryde (Ellen Page), Iceman (Shawn Ashmore) and other mutants are fighting several giant Sentinels (who are very tall and can shoot fire out of their metal bodies) -- and losing. That is, until Kitty Pryde uses her phasing ability to somehow time-jump right at the end of the clip. The remaining footage was a trailer for the film.

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The scene from Dawn of the Planet of the Apes features Caesar and his fellow genetically evolved apes living peacefully until they are discovered by humans. The explosive footage, which played very well to the Las Vegas audience, showed the growing tension between the humans and apes as some humans consider defending the apes while others want them wiped out.

Gone Girl's dark trailer showed Ben Affleck's character dealing with a media frenzy after his wife (Rosamund Pike) disappears. The trailer promises a haunting thriller, very much in line with Gillian Flynn's book on which it is based. Affleck's character can be seen creepily posing with his wife's "Missing" poster and being harassed by media and police as the search continues for her. "I did not kill my wife. I am not a murderer," says Affleck's haunting voiceover toward the end of the trailer.

For Secret Service, a scene was shown where Firth speaks to a young man who has gotten into some trouble. Firth's character, a well-dressed, proper gentleman, is interrupted by a group of rough-around-the-edges boys. They tell him to leave before he gets hurt. But Firth's character then reveals that he's a trained agent, taking out the group of men single-handedly (with the help of a high-tech umbrella). The rest of the action-heavy footage showed Firth's character kicking butt in several major fight scenes while taking a young upstart under his wing. The footage received strong applause from the crowd.

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After the clips had played, Jim Gianopulos, CEO and chairman of 20th Century Fox, took over the presentation, bringing plenty of actors to the stage to introduce Fox's summer films.

Leslie Mann and Cameron Diaz from The Other Woman were the first to present footage, from their upcoming comedy about a married woman (Mann) who discovers that her husband has not one, but two mistresses.

Shailene Woodley, star of Divergent and the upcoming The Fault in Our Stars, was next to take the stage.

"It was truly, authentically, genuinely one of the biggest honors of my life to be a part of this project," said Woodley of Fault in Our Stars. "I literally told Fox that I would be a PA or a caterer if I wasn't right for the role of Hazel Grace."

The presentation wrapped with the theater soaked in red and blue police siren lights as Jake Johnson and Damon Wayans Jr. took the stage -- dressed as cops -- to show off the trailer from the upcoming comedy Let's Be Cops, directed by Luke Greenfield.

Twitter: @Beccamford