(Photo Credit: Jason LaVeris/FilmMagic/Getty Images)

Filming a summer blockbuster with budgets into the hundreds of millions can be stressful for any movie star.

So, when it came time to return for the sequel to "Percy Jackson," Alexandra Daddario, 27, who plays Annabeth, said the cast had each other to lean on.

"We're all sort of in it together," she told ABC News while visiting New York City. "At the end of the day, you can be exhausted, you worked a long day, but having people there to make you laugh is a reality check."

Related: Logan Lerman Talks 'Percy Jackson' Sequel

Shooting "Percy Jackson: Sea of Monsters" in New Orleans was also a nice change of pace for Daddario, who said there were great places to explore with co-stars.

"We all got to go to this bar Blacksmiths; it's a piano bar and everyone sits around the bar," she said. "You drink around the bar and yell out songs to the pianist. We'd go there and listen to music. That was one of the coolest experiences."

Big budget fantasy films also come with world tours, something that Daddario is not sick of yet. Her latest stop was Italy in June for the Giffoni Film Festival.

Watch: Alexandra Daddario on Being in Her Favorite Magazines

"It really doesn't feel like work to me," she said, especially of the first-class travel and 5-star accommodations. "In Italy, the food was amazing and we went to the Amalfi Coast, which is one of the most beautiful places I've ever been."

For the second "Percy Jackson" movie, Daddario, a natural brunette, wanted to stay true to the books and decided to go blonde.

"It was fun," she said. "I'd always wanted to be blonde, now that I did it, it was fun except you have to sit in the chair getting your hair colored for hours and hours and it's so boring. I get so restless!"

Blonde or brunette, Daddario has the unwavering love of her new puppy Levon when she gets home to Los Angeles. She's been posting plenty of pictures on Instagram of her furry friend.

"I'm like a new mother who will not stop showing you pictures of their kid," she said. "It's my first dog ever. Los Angeles can be a little lonely, you're not around people as much as in New York, so having a dog to come home to everyday is really great."