Turns out Tony Stark's alcoholism wasn't the only element of "Iron Man 3's" original screenplay that veered a little too sharply into adult territory. Indeed, writer/director Shane Black's penchant for using the f-word also required some intervention - by none other than his co-screenwriter Drew Pearce.

"We actually had to have a sit-down conversation about the fact that you couldn't say 'fuck' in a PG-13," said Pearce during the threequel's press conference on Monday.

"When you would write for television, when I was coming up in this business, you would just say 'fuck' anyway and you would just know they would take it out later," interjected Black.

"That was weirdly the attitude," said Pearce. "It was like, [but] 'everyone's going to see this.'"

In any event, parents will be happy to know that the film does not, in fact, make use of the popular curse word, though in Black's estimation it also doesn't "pander" to that audience by excising all traces of adult sophistication. Noted the director:

"Coming into this I had to go back and say, 'I remember what it was like when I went to the matinee to stand in line for 'Empire Strikes Back' or 'Star Wars'' or those types of films and get excited all over again about that type of adventure that could appeal to a family but was still edgy."

Also addressed during the Q&A was the much-reported-on Chinese version of the upcoming film ("We left out the giant dragon," joked Black), which will feature extra bonus footage tailored specifically for audiences in the emerging international market.

"Marvel would like to keep an element of surprise about that," said Pearce. "So when the inevitable versions of it feed back to us, you'll see exactly what it involved. But for the moment, I don't think we're allowed to talk about it."

"The Chinese version will be an interesting surprise," added Black. "We do know that there's additional footage that will be available in that version, which I'm sure will filter back here."

Also joining Black and Pearce on the panel were franchise first-timers Rebecca Hall and Guy Pearce, who star as Extremis co-creators Dr. Maya Hansen and Aldrich Killian, respectively. For Hall, it was a rare entry for the actress into the world of blockbuster filmmaking that appealed to her for the very fact that it didn't feel like most other blockbuster films.

"It was a combination of 'don't knock it til you try it' and 'this one seems like one that would be very fun to try,'" she said. "I remember going to see the first 'Iron Man' film and thinking, 'What an unusual thing that they're not casting action heroes, they're casting Robert Downey Jr. and Gwyneth Paltrow. This must be interesting.'"

Not that all the typical big-budget trappings weren't a major presence on set.

"There were literally rows of people sitting behind us at the monitors with laptop computers, kind of mocking up versions of what things were gonna look like," said Guy Pearce of the experience. "Which, you know, doesn't often happen on a $2 million Australian movie."

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A former contributor to sites including MTV's The Backlot and Bloody-Disgusting, Chris Eggertsen worked in film development before indulging his love of pop culture writing full time. He specializes in horror, the intersection of social issues and entertainment and Howard Stern. He's on Twitter @HitFixChris.