Seth Rogen knows how you sell a movie. For example, in the upcoming comedy flick "Zac Efron naked. Or at least, shirtless.

"I try to make sure there's paparazzi around, because I know it's good early promotion for the film," Rogen joked when we caught up with the actor at SXSW. "I know we'll get a lot of hits online. Get the name out there. I call Jared... From Just Jared."

In the movie Rogen plays a happily married father of one living a peaceful life with his wife, played by Rose Byrne. Things get turned upside down when a fraternity run by Efron's character moves in next door, leading to an increasingly dangerous battle of one-upmanship.

And as an extra feature for fans, Efron is often seen missing his shirt... But he's not the only one.

"I'm shirtless more in the movie than I wish I was!" Rogen recalled, laughing. "The ratio is off, the Zac to Seth shirtlessness. It's like, one to one. That's not what you want. It should be 50 to one!"

That wasn't always the case on set, though. When Efron fist showed up for filming a scene set in a major clothing store chain, he was worried the entire shoot would find him sans outerwear.

"The second day of filming was Abercrombie and Fitch," Efron said. "I was standing there going, f--k this is my nightmare. This is very well what could happen to me some day."

"It was a little too real," quipped Rogen.

Luckily for Efron, later that day he wasn't the only one who lost his shirt, ...

Get out those scratching posts, because it looks as if we may have the makings of an epic Young Adult catfight on our hands!

"Shailene Woodley (or should we say shade-lene?) stirred the pot in a recent interview with Teen Vogue magazine, in which she dissed another very popular Young Adult franchise.

"'Twilight,' I'm sorry, is about a very unhealthy, toxic relationship," she said. "She falls in love with this guy and the second he leaves her, her life is over and she's going to kill herself! What message are we sending to young people? That is not going to help this world evolve."

Those sound like fighting words to us! You hear that, Kristen Stewart?

After all, "Divergent" isn't short on the boy drama either. Though Woodley's character, Tris, is, in our opinion, more kick-ass than Bella Swan of "Twilight" (after all, one of them dreams of making out with a vampire while the other literally fights for her life and is instrumental in a revolution), she has a little thang going with Four (Theo James), who is basically her teacher. Bow chicka.

Woodley also dished about her own relationship status in the interview.

"I literally have not had a boyfriend in almost five years. I've never even hooked up with anybody I've worked on a movie with," she said, and then laughingly admitted that once cameras stopped rolling, that chemistry may have been taken to the next level. "Well, that might have happened on something...."

"Divergent" hits theaters March 21.

fans: Have you ever wondered what your fear landscape would include if you were lucky(?) enough to join Dauntless? Well, so have cast members Shailene Woodley and Theo James, and their deepest fears are rather... briny.

Woodley and James joined Ellie Goulding Wednesday night for the premiere of her "Beating Heart" music video — a jam from the "Divergent" soundtrack — as well as a Q&A with "MTV First."

After dropping the video, the cast and Goulding got a little deep, delving into what scares them the most. Don't expect your standard, run-of-the-mill answers like "the dark" and "falling in love again" — these three stars have some pretty bizarro bugaboos.

Check out the video below to see what gets them shivering — then head to the comments and let us know: What populates your fear landscape?

When MTV News visited Josh Duhamel in Texas on the set of the upcoming thriller "Lost in the Sun," there was plenty he wanted to share about his latest role ... as a father, that is.

In August, Duhamel and his wife, Black Eyed Peas' star Fergie, welcomed their first child — a boy named Axl — into the world. And in the time since, the actor has discovered that parenthood is a lot more difficult that learning lines; for starters, there's no script to speak of.

"It's something that I always wanted to be, to be a dad, and finally it's here, and it's everything; it's every cliché everybody said it was going to be," Duhamel told MTV News' Josh Horowitz." And now he's starting to do stuff, it really makes it exciting. I come home from work and [Fergie's] taught him something new. He's breakdancing now; he's six months!"

Of course, Fergie and Axl were with Duhamel on the set of "Sun," something the actor was quick to point out, as he directed our cameras off into the distance, where the new mom and her baby boy were enjoying the Texas morning.

"Look at that! You won't see that every day. Pushing a stroller through a pasture, Ms. Fergie Ferg," Duhamel laughed. "She's fantastic. She's a wonderful mom, that's for sure. ... She'd never changed a diaper before this, she'd ever held an infant before this, I had because I have much younger sisters, and all my buddies have kids ... so it's been fun to watch ...

Spring fever erupted bigtime this week when "First Kiss," a short film featuring 20 strangers kissing for the first time, hit the Web. Some outlets classified the video as "beautiful," others, like Slate, were quick to point out that the vid was essentially an ad featuring lots of pretty professional entertainers.

The woman behind the video, however — fashion designer Melissa Coker — opines that despite its commercial classification and dazzling cast, everything that happens in the ad is 100 percent real, which is why it has managed to racked up more than 25 million views since Monday.

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"Everyone was a volunteer," Coker said, adding that the 20 people in the video were friends of either herself, director Tatia PIlieva or her clothing brand, Wren. "It's kind of funny, the dialogue that sort of developed online and everything where people are like, 'This isn't real, there's actors in it!' It's like, 'Well, there's some people whose profession is actor, but it's L.A. after all, I can't help but have actor friends.' But everything that you see is 100% authentic and real and exactly as how the video explains it."

In the video, a series of couples — attired in Wren's Fall 2014 line — tentatively approach each other after being asked to kiss for the first time ever. The pairs circle each other awkwardly, then, for the most part, end up locking lips passionately — ass grabs and lip-biting included.

The cast includes the likes of Damian Kulash of OK GO, Z Berg of The Like and JJAMZ, models Natalia ...

When Freddie Gibbs split from Jeezy's CTE Records back in 2012 it wasn't on good terms, and during a recent show in Chicago, the Indiana rapper made it clear that he still has a lot more to say about it.

Gibbs signed to the label back in 2011, and told MTV News last year, "I believed in what CTE was and what Jeezy was doin,'" but that didn't last for too long.

When he performed the new song "Real" in Chicago last week, he had some scathing words for Jeezy, referencing his beef with Gucci Mane and his scuffle with Rick Ross backstage at 2012 BET Hip-Hop Awards.

Though it's difficult to understand every word in the video footage, there are a few lines you can hear pretty clearly, beginning with, "You wanna be Jay Z, n----a you just a f-----g puppet."

"You say you're the realest, but Ross had you scared to drop a diss record," Gibbs spits, "You had the whole team looking weak, I guess that's why they ran up on you at BET."

And even, "Seen Gucci by himself when we were 30 deep at Magic and you didn't bust a brick." This marks the first time that Gibbs has put his resentment for Jeezy on a track, but last year he laid it all out in interviews.

"I started seein' the fake and the empty promises and all of that stuff and I just didn't wanna be around that no more," he told MTV News. "It's tough meetin' your heroes sometimes and kickin' with them because ...