Moviemaker Michael Bay had to find a stripper trainer to teach newcomer Bar Paly how to dance seductively in his new film Pain & Gain.

The director fell in love with the Israeli actress/model at her audition and offered her the role of Sorina Luminita in the film, only to learn she was a terrible dancer.

Bay tells Wenn, "In her contract I made her gain 10 pounds. I said, 'You need to have a booty here, Ok? None of this skinny waif stuff!'

"She fit the character beautifully, her innocence, her charm, her accent. But then she had to dance.

"I don't know where you find a stripper trainer but we found one. I had to pay them cash under the table and (movie executives at) Paramount said, 'Why are you paying them cash? We can't do that, we are a public traded company.' I said, 'Do you have a stripper trainer? 'Cause I don't and we're shooting in four weeks!'

"I called the dance studio to check up and this Swiss girl said, 'Oh Michael, she's terrible, she's terrible!' I said, 'You better do something.' She did magic with her. When she walked on that stage that's all her; she commanded the stage."