06/12/2012 05:04 pm ET

Sex Advice From Emily Blunt and Rosemarie DeWitt

Emily Blunt (The Five-Year Engagement, The Devil Wears Prada) and Rosemarie DeWitt (Mad Men, Rachel Getting Married) star in Your Sister's Sister, a new comic drama about a sibling love triangle, out this week from Lynn Shelton, director of the delightful Humpday. (You can check out a trailer for Your Sister's Sister here.) We spoke with all three of these charmers about love, sex, and the relative attractiveness of Jon Hamm and Ewan McGregor.

Rosemarie, you've starred opposite some pretty different male leads. There's Don Draper, who's dashing but unavailable. Then there's Jack in this movie, who's a little lost, but more open. Which type do you prefer?

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