Mr. Bowden at Tribeca Film Festival in 2003.

In a bit of holiday-appropriate news, The Atlantic national correspondent Mark Bowden has sold a book about the death of Osama Bin Laden to Morgan Entrekin at Grove/Atlantic, reports Publishers Marketplace. The book, to be published in October 2012, is "an account of the Bin Laden strike written in Bowden's signature 'you are there' style, going inside the war room as decisions were made and onto the ground as directives were executed." It's titled The Finish: The Killing of Osama Bin Laden.

The Finish seems ripe for cinematic adaptation—as Mr. Bowden's career-making book, Black Hawk Down, was—but any movie version would likely have to compete with The Hurt Locker director Kathryn Bigelow and writer Mark Boal's film on the same subject.

Their adaptation of President Obama's greatest military victory, due out in December, has been the source of political controversy since Rep. Peter King alleged that the White House gave the filmmakers access to classified information. Documents obtained by Judicial Watch in May showed that the filmmakers were given access to a member of the U.S. Navy SEAL Team 6 and the C.I.A. Vault.

Here's hoping Mr. Bowden's been treated with similar hospitality.

Bigelow and Boal (Getty Images)

Per The Hollywood Reporter's coverage of a Judicial Watch Freedom of Information Act request, Kathryn Bigelow and Mark Boal, director and screenwriter of the upcoming Kill Bin Laden, met with government officials to discuss the mission to, well, kill Osama Bin Laden. According to 153 pages of records obtained, Mr. Boal met with Chief Counterterrorism Advisor John O. Brennan and Deputy National Security Advisor Denis McDonough, among others. There's been predictable outcry, with Judicial Watch's president Tom Fitton claiming "politically-connected filmmakers were giving extraordinary and secret access to bin Laden raid information, including the identity of a Seal Team Six leader."

No chance of the film giving President Obama a "home-stretch boost" as Mr. Fitton claims, though, unless people are inspired by trailers--it comes out in December, after the election.

“That guy sort of reminded me of Ron Silver,” said men’s wear designer Billy Reid of Mr. Boal, approvingly. He termed the look “easy, but not sloppy.” Mr. Reid, who sells buttoned-up, Southern-style suiting out of a cavernous shop in Noho, himself also maintains a neat beard (reined in by an electric trimmer) and side-swept floppy hair, at least lately. He said that men’s hair and beards are becoming “more well kept. They’re paying more attention to it.”

Men’s hair trends—like men themselves—are usually more sluggish than women’s. Since men started growing their beards like unkempt hedges, for example, the fairer sex has powered through Cleopatra bangs, 1940s Veronica Lake waves, Heidi braids, the long Gwyneth bob, Alexander Wang side braids and now, this spring, pink streaks reminiscent of the Kool-Aid–colored dye you made at summer camp. But men also seem to be experimenting more! Sure, Stumptown baristas still wear mustaches to serve mochas, and full beards are common in yoga studios in Brooklyn and at the bar at Freeman’s, but the Bowie-esque long-on-top, shaved-on-the-sides look is currently in vogue at art openings and on Bedford Avenue, and many of the city’s best barbers—like its interior designers and restaurateurs—say they’re currently in the throes of Mad Men mania. Paul Andrew, an owner of Panyc Salon on 17th Street, said men are buying more product than women these days and coming in every two weeks, compared to six weeks for women. “Men are more high maintenance than ever,” he said. “I’ve been doing hair 25 years, and I’ve never seen it like this.”

SLIDESHOW: A history of floppy hair, from the Kennys (Rogers and Loggins) to the Jasons (Schwartzman and Reitman) >>

NOW, MANY ARE are turning to the blow-dryer decade for inspiration. Experts say they have sniffed the beginnings of a Jon Peters revival here in New York (he’s the hairstylist–turned–movie mogul and Barbra Streisand ex that partly inspired Shampoo), and that it’s not as low maintenance as it looks. “Actually, on Wednesday, I went to play music in Brooklyn, and I was in the subway and I saw two dudes like this,” said prominent men’s stylist and salon owner Martial Vivot. “I said, ‘Whoa, whoa, whoa, what’s going on here?’ I was looking at them, they were very well put together, very well dressed, and I thought, Are we having a trend starting here?” He described the general vibe as “end of the ’70s. Hair parted, but not a sleek part, a part with volume. Like you blow-dried your hair.”

“A more groomed, shaggy, ’70s feel is something we’ve been venturing into in the salon already,” said Shaun Cottle, an owner of Seagull Salon on West 10th Street, which features a picture of Cat Stevens on its Web site, adding that he himself has “a medium-length blond shag with bangs. … I have exactly the ’70s haircut you’re talking about. It starts at the top of my eyes with the bangs and goes right around my face to the back of my neck.” (He admitted that he chemically straightens his pseudo-shag and has it blown out once a week.) He described the look, embodied to varying degrees by everyone from Mr. Boal and Mr. Reitman to Jason Schwartzman and Noah Baumbach to New Orleans tight end Jeremy Shockey, as “obviously very stylized, and giving a really specific projection, but that projection is, ‘I am organic.’”

Indeed, it’s a look that channels hot tubs and guitars, more ’70s porn star than grumpy Unabomber. “I’ve done a couple of really extreme bowl cuts from the ’70s on men,” said Mr. Cottle. “No part at all, kind of Peter Berlin in That Boy.”

The style’s key elements are soft, floppy, washed locks, a trimmed beard (if one is worn at all) and a creative, unfussy affect that contrasts with that of the stylized punk hairdos, uncomfortably full beards and strangulating jeans in which New York men have suffered through the past few years. It combines the relaxedness of a recession—very ’70s!—with, perhaps, a dawning optimism. “It’s getting away from the Julian Casablancas, that Williamsburg kind of look,” said Jordan M, a men’s stylist for Bumble & Bumble. “That grown-out, tendrilly, long, Jesus-looking hair that just looks like they haven’t had a hair cut in forever.”

“Before, you will have people who will ask for more hair, and then they just have the pillow hairstyle, like you are asleep, you wake up and whatever happens, happens,” said Mr. Vivot. Now, “I’m seeing kids in their 20s asking for more hair, but they want to take care of it.”

Unlike harder-to-pull-off trends like the Bowie do, the updated porn shag can work for anyone. “Just yesterday, someone got in my chair and it was exactly that,” said Jordan M. “Straight guy, Rolex, works in an art department, and he had the trimmed beard and long shaggy hair, pushed back loosely, probably doesn’t use any product. He basically told me, ‘The more you can make it look like I cut it, the better.’”

The faux–low maintenance of the look eases this transition, in some men, from Paul Bunyan to Kenny Rogers. “You got into a period where everyone was rough and rugged, and soon enough it’s going to be the complete opposite,” predicted Eddy Chai, co-owner of the popular men’s boutique Odin. Mr. Chai foresaw a welcome loosening of clothes to accompany the boyish, floppy shift in hair, democratizing men’s dressing back into a straightforward, unironic affair. After all, Mr. Boal and Mr. Reitman were hardly the best-looking men at the Oscars, but the look, inclusive with an air of historical significance, lent them a flatteringly low-key intellectual edge.

On Sunday, March 14, Gabriel Berezin, 33, the guitarist and singer for the bands Monuments and Ghost Gamblers, was weathering the rain on Manhattan Avenue in Greenpoint in an updated Laurel Canyon look he pegged to 1970. “You know who it was?” he said, asked to name his inspirations. “There was a picture of Paul McCartney right after the Beatles broke up, when he first started doing solo stuff. I remember being in college, saying, ‘If I could just get my beard and hair looking like that, I’d be totally psyched. Of course, I couldn’t grow a beard at that point. It took me a long time to get the beard in this condition.’ (He said he trims and clips his beard every few days with scissors or a trimmer.)

Mr. Berezin admitted he thinks about his hair “in terms of some old idea of what a musician looks like,” since “part of being artistic is not really giving a shit.” But still, he has a day job to think about these days, and a girlfriend.

“I think it’s kind of rude to have a superlong beard,” he said. “It’s hard for a girl to navigate through.” (Of course, the grizzled look poses its own perils, like a certain prickliness during one act of love.)

Meanwhile, Jordan M, from Bumble & Bumble, cautioned that the rounded shape of ’70s hair-and-beard combinations can add an unwanted fullness to the face. “When the hair’s longer on the sides, it doesn’t look like masculine or flattering to me,” he said.

But early adopters of the trend say they’re not after flattery, but comfort. Indeed, Mr. Reid, the retro-shagged designer, who said he’d been in a continuous process of growing out and shaving off a Paul Bunyan beard since college, suggested the whole thing might be accidental. “You’re probably seeing a lot of guys saying they want a change, and that’s where they’re at—in the in-between,” he said. “It’s hard just to take the full plunge of cutting [your beard] off and going back to nothing.”

mbryan@observer.com

SLIDESHOW: A history of floppy hair, from the Kennys (Rogers and Loggins) to the Jasons (Schwartzman and Reitman) >>