The 22-year-old actress split from the 23-year-old actor in December 2010 due to the pressure of their careers, but Vanessa is hopeful they may be able to get back together in the future.
She told Details magazine: “We're still friends. Who knows what the future will bring? We're figuring things out."
Rumours have circulated that they have already reunited but nothing has been confirmed.
Despite her relationship woes, Vanessa was able to forget about her personal problems whilst shooting new movie ‘Journey 2: The Mysterious Island’ in Hawaii.
The ‘High School Musical’ star claims she spent most of her time having her breasts sprayed with fake sweat to recreate the humidity in the jungle scenes.
She revealed: “Throughout this whole movie we're trudging through the jungle. So, of course, we're sweating. I can't tell you how much time is spent putting oil on my chest. And Evian. Spraying Evian bottles on my chest and my arms and my forehead, but mostly my chest. Just to look like I'm sweating. But your boobs don't really sweat, cleavage doesn't sweat. So it's kind of funny."
And Vanessa’s shimmering cleavage impressed at least one of her male co-stars – screen icon Sir Michael Caine.
The actress claims the 77-year-old actor has been flirting with her in-between takes.
She laughed: “Not only is he amazingly, stupidly talented, but he still kind of hits on me. All the time. If it was anybody else, I'd be like, 'Who the hell do you think you are?' But because it's Michael Caine, I'm like, 'Sock it to me more, baby, come on!' "
Read more: Zac Efron and Vanessa Hudgens were 'constantly touching and kissing' on Friday night