TRANSFORMERS: ROSIE HUNTINGTON – WHITELEY IS RUNNING IN HEELS IN TRANSFORMERS: DARK OF THE MOON

TRANSFORMERS: ROSIE HUNTINGTON – WHITELEY IS RUNNING IN HEELS IN TRANSFORMERS: DARK OF THE MOON

Rosie Huntington-Whiteley -- the sexy new star of 'Transformers: Dark of the Moon' -- reveals to ET the film involved an "intense" shooting regiment that involved a lot of action scenes in heels. 

Huntington-Whiteley was attending a party Wednesday night in Hollywood for Maxim's Hot 100 list, which she tops at No. 1. 

The Victoria's Secret model and actress said she didn't have much time to prepare for the 'Transformers' role after being cast. "I had like two weeks to get in shape and to get my head around the fact that I was even in the movie. But it was an intense shoot, it was seven months, a lot of running in heels." 'Transformers: Dark of the Moon' is set to hit theaters July 1.

Producer/director Michael Bay said Huntington-Whiteley was chosen for the role despite a worldwide casting search. "We cast around the world, from France to Australia, Canada, America. And I worked with her on a Victoria's Secret commercial several years before, and we spoke, and I just remembered her personality. I sent her an email and said: 'Would you be interested in something like this?' And she goes, 'No.' And I said, 'Just try it out.'"

Watch the video to also hear actress Camilla Luddington, who played Kate Middleton in the Lifetime movie "William & Kate," explain why she's a big fan of the Duchess of Cambridge.