As a Victoria’s Secret supermodel, it was Rosie Huntington-Whiteley’s luck to make a commercial with Michael Bay directing.

“Shooting a commercial with Michael isn’t your average commercial,” she said of the 2009 encounter, “although it wasn’t an exploding bra.”

It was explosive enough, however, for Bay to page her when “Transformers: Dark of the Moon” needed a new romance for Shia LaBeouf.

“Out of the blue it happened. I went along for the casting after I received an email from Michael,” Huntington-Whiteley recalls.

Models who cross over into acting can find it dangerous, as she well knows.

“You have to unlearn everything you know as a model. As an actress you have to be unselfconscious and being a great model is being conscious of your body and conscious of what you’re selling. It’s a double-edged sword, it helps and it doesn’t help.”

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