Navy Seals woke Vanessa Hudgens up at 5am!

SAN DIEGO - JULY 24: Actress Vanessa Hudgens attends the 'Sucker Punch' red carpet during Comic-Con 2010 on July 24, 2010 in San Diego, California. (Photo by Frazer Harrison/Getty Images)Preparing for her role in Sucker Punch was hard work for Vanessa Hudgens.

Vanessa told how she nearly passed out during training.

‘We did this really tough training,’ said Vanessa. ‘We would be woken up at like 5am by two Navy Seals and taken on this hour-and-a-half hike with 150-pound packs on our backs. Then we would do these crazy circuits then firearms training.’

‘I was this close to passing out. I cried it was so hard.’

It’s clearly paid off! Check Vanessa out.