Sienna Miller, who plays young party girl Edie Sedgwick in the recently released movie Factory Girl, is worried about what her father will think if he sees the explicit scenes from the new film.

Sienna, who played Nikki in the 2004 succes Alfie, declared for the Daily Mirror that she decided, along with co-star Hayden Christensen ( who plays rock star Billy Quinn), to make the scenes as realistic as possible. After all, it's a movie about the 60's, and sex, drugs and rock and roll where a big part of that.

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