Amber Tamblyn, Blake Lively, Alexis Bledel, and America Ferrera star as four friends who do a lot of growing up when they're forced to spend a summer apart in "Sisterhood of the Traveling Pants."

AMBER TAMBLYN AND BLAKE LIVELY INTERVIEW:

How did you bond as a cast?

Amber Tamblyn - You name it, we did it. We were inseparable. Like, whenever we did our scenes together, we had sleepovers at America's [Ferrera] and just everything, like we went out to dinner with each other.

I'd go jogging with America in the morning, we'd work out together, we'd go hiking together, we'd eat dinner, breakfast, lunch together. Go see movies. I'd go dancing with Alexis [Bledel] till like five a.m. There was a really awesome club up there. I actually got her to breakdance in a competition, that was another story.

Spending time away from one another when you were each shooting your own stories must have been hard after becoming such good friends.

Amber Tamblyn – [That] was torture because we really missed each other for real. We became incredibly good friends when we were up there [in Vancouver]. Really, really close friends, fast, which is interesting because that's what it needed for the movie. But it just happened to be that it worked that way. Usually, you get girls with like minds and it just happens, I guess.

Did you have a group of girlfriends like the ‘sisterhood’ in the movie?

Blake Lively - I still do. I have a friend, my friend Jessica, who I've had since I was 3 years old and my friend Brittany who I've had since…7th grade.

We can fight like no tomorrow and we can have these crazy times and prank, and go do nothing together and it's this great friendship because you have such a deep understanding of one another. We know each other so well inside and out that it's amazing.

Were you jealous because Alexis Bledel got to spend the summer in Greece?

Blake Lively - Well, I got to spend the summer in Cabo.

Amber Tamblyn - And I had blue hair! Vancouver is like a vacation for us. It's not Greece, obviously. Looking at the film, some of those shots [in Greece] are just phenomenal. They're so beautiful. It's insane.

Do you play soccer like your character?

Blake Lively - Yes. I had two months of soccer training through trainers in Los Angeles and Canada. My brother-in-law took me to all the games with him and his friends, and I played with the other girls in Canada. I played for three years when I was young and I was absolutely horrible at it but I loved it. So, when they told me I'd have to learn how to play soccer I was so excited because it's such a fun sport to play.

Amber, growing up in the industry, do you feel like you've had a normal childhood?

Amber Tamblyn - …I haven't had a lot of celebrities around me growing up. My father comes from a generation of film that actors my age don't even know about, which is really sad. Really sad. So, there are very few people that know what "Hit the Deck" are and "Seven Brides for Seven Brothers." You'd be surprised. "West Side Story," yeah, that's universal.

At what age did you start “General Hospital?”

Amber Tamblyn - I started “General Hospital” when I was 11 years old and I was on there for seven years. But I went to a school for theater before that for nine years. It's been in my genes for awhile but my parents are so cool. Probably the biggest celebrities for me even remembering are Kyle MacLachlan and David Lynch because my dad was doing "Twin Peaks" when I was younger, so it's things like that. Other people like Neil Young and Dennis Hopper, those are just really close knit family friends. So it's never like there's just random celebrities hanging out at the house that I know so I'm all hooked up through that. My parents cultured me a lot and they introduced me to a lot of artists, a lot of their friends. I actually often freak out that one day I won't have the same cool stuff to give my kids, like my parents have given me. It's something I think about all the time.

Will “Joan of Arcadia” be back next year?

Amber Tamblyn - This might be the first time in my life I don't have a gut feeling on anything. It's very weird because there's no rumors. They're so tight-lipped about it. Normally you'd hear something and be like, “Oh, you know, we've heard this is the way it's leaning.” But I haven't heard anything.

Is the night it’s on an issue?

Amber Tamblyn - This will be the first time I ever say this, and it'll be the last: they need to move the night. That's all I'm gonna say. If it comes back, I think that Friday night is not a good night to be on. For a show like this, and where it's gonna go, I mean, if you saw the season finale, it's going a little darker and deeper and heavier. And for instance, they want Blake Lively's age group, right? She's 16, 17 years old. Blake is not home on a Friday night. Like get with it! Let's figure this out, let's make this work. So, my gut feeling is, I don't have a gut feeling. I don't know. I know nothing.