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"I try to be productive" during downtime on-set, says Vanessa (in the East High gym). "But usually I just goof off with everybody."

"It's uncomfortable," Lucas confesses of dancing in tight pants and a belt.

While filming, Zac would give Ashley workout tips. "He's like, 'You have to cut down on carbs.' But I'm a big fan of carbs," she says.

FUN FACT: CORBIN'S NICKNAME FOR MONIQUE IS MO-MO.

"You've always known that they're together," Corbin says of Chad and Taylor. "But this time around you get to see that there's an actual relationship going on."

Troy and Chad's junkyard scene (with Mini-Me actors Skyler Johnson (left) and Tui-Niua Tuita) "is our first duet," says Corbin. "It's a bromance!"

"After we perform, we're winded," says Vanessa, (goofing off with Monique). "It's hard."

FUN FACT: ASHLEY HAD GUITAR HERO IN HER TRAILER

"Her future is Broadway, and she doesn't want anyone standing in her way," Ashley says of Sharpay's attitude in the film.

"The numbers are much more grand. The music is really good," says Vanessa (between scenes of HSM3).

"On this movie I was working with my best friends," says Ashley (in rehearsal). "You don't always get to do that."

FUN FACT: 1,000 EXTRAS TAKE PART IN HSM3'S GRADUATION

Saying goodbye "was a very emotional day," recalls Ashley. "All of us were crying!"