While Marvel and Warner Bros. put on some big shows for Comic-Con this year, the BIGGEST panel had to go to 20th Century Fox -- who managed to get the ENTIRE cast of their upcoming "X-Men" movie to show up.

That's right, Hugh Jackman, Halle Berry, Anna Paquin, Jennifer Lawrence, Sir Ian McKellen, Peter Dinklage, Sir Patrick Stewart, Shawn Ashmore, Nicholas Hoult, Ellen Page, Michael Fassbender, James McAvoy and Evan Peters all popped up to promote "X-Men: Days of Future Past" ... and it was amazing.

The new movie shares a plot with the popular comic book arc of the same name, where the mutants time travel and work together to stop the rise of the Sentinels.

toofab's Brian Particelli was at the giant (and admittedly intimidating) press conference. Check out 10 takeaways about the flick below:

Jennifer Lawrence is naked ... and proud.

toofab asked the group about the costumes this time around ... or lack thereof.

"She's pregnant, I'm naked, come see the movie!" Jennifer joked about the new flick. "I personally love the '70s, the moments I get to wear the '70s clothes. I really love the stuff from that time and wearing clothes when I can. The Mystique stuff, some of it is a little bit different, but we're still using the same paint."

"When we left the movie she was mutant and proud. She was very covered up in the first movie but now she's mutant and proud."

And while she's naked, everyone else got new clothes.

"My threads are awesome, lots of flair. Psychedelic shorts, it's great and I love it," said McAvoy about his funky costumes.

As for Jackman, he loves his new suit. "First of all, they're a helluva lot more comfortable to wear than 'X-Men' One and Two," he says. "They look really amazing. And people in the future wear suits who never wore suits before."

Sir Ian McKellen won't be donning his famous headgear.

"The best thing about being Magneto this time: No helmet," McKellen said about working on this movie.

After some chatter from James and Michael Fassbender, Ian joked "We'll talk about helmets later!" Cue serious laughter.

Xavier is back ... for a moment.

"I heard about this movie and I was immediately filled with such sadness because at the end of three I was vaporized by Jean Grey," lamented Patrick. "And so my assumption was, there's gonna be Ian and Halle and Hugh and everybody back, but it won't be me. But something happens, that I'm not allowed to talk about."

So does that mean he's back? "For the moment," says Singer.

Halle is happy to be back in the fold.

"In the first movie we became really good friends," says Berry. "We liked each other, we liked being around each other. So to have a chance to do the work that we love and to hang out with the people that we really admire, respect and like to be around to me is the joy of coming back. The beauty is, because we are good friends, is that we pick it up like we saw each other yesterday."

Peter Dinklage's mystery role revealed!

There has been a lot of hubbub over who "Game of Thrones" star Peter Dinklage is playing in the new movie, with many sites suggesting he's playing Boliver Trask.

The presence of the Trask-created Sentinels in the movie (and all over Comic-Con) seem to confirm that suspicion -- but Dinklage says otherwise.

When asked who he's playing, Peter said "Mystique."

Somehow we don't believe him.

The movie will rewrite some history from the previous movies.

Ever since the original X-Men characters started getting cast in this flick, it started sounding like director Bryan Singer was trying to fix some of the problems with "X-Men: The Last Stand."

When asked if he would be changing some of the timeline through time travel, Singer was honest.

"I do believe in certain continuity, but some things will change," he says. "That's the nature of time travel, you go back and mess about, things happen. So that's something ... some of those rumors are probably somewhat true."

No word on if we'll see Cyclops or Jean Grey come back from the dead though ... yet.

Magneto and Professor X love their younger counterparts.

"The best part about this movie has been for me knowing, at an earlier time in my life I was James McAvoy," joked Patrick.

Ian added "An I'm looking forward one day to being as dashing and successful as Michael Fassbender."

McKellen even flirted with Michael during the Hall H panel, glancing at him while telling the crowd "I feel safe here now that you've gotten rid of Proposition 8. I'm looking for a husband. It's great to meet you, Michael."

Even Beast was intimidated by the original cast.

"When we walked into those old corridors for the first time, we were doing a scene and I looked over during a take and saw Hugh Jackman as Wolverine and I panicked," says Nicholas Hoult. "I freaked out a little bit because those were films that I grew up watching."

Even McAvoy knew this was something huge, saying working with Hugh, Ian and Patrick was like "touching an icon."

Wolverine & Storm 4-Eva!

When asked to name his favorite mutant besides Wolverine, Hugh had only one person on his mind.

"It's a very, Storm, difficult thing, Storm. It's a very very difficult, Storm, thing to say who is my favorite, Storm," he said. "But it's also a hard thing to separate an actor from a part, Storm, so my general rule is to do as many, Storm, movies with Halle Berry as possible. Is that alright to say?"

Jackman's love of the cast reaches far beyond Berry though.

"It's almost impossible to believe how incredibly unique, rare, lucky we are to come back together," he added. "You guys knew me before I had kids. So much has changed and we've gone through [it] together."

Check out more photos of the cast on the set of the flick below: