Sharing the Stage - NYTimes.com "Zero Dark Thirty" meets "Downton Abbey" meets Broadway. No, that is not an end-of-the-year cultural mashup but a description of the special New York screening and dinner held in honor of Jessica Chastain, star of "ZD30," as it is familiarly known. As Melena Ryzik reports for Scene City, the host was Al Pacino, currently starring in "Glengarry Glenn Ross" on the Great White Way. And the guests included Dan Stevens of "Downton Abbey" fame who also happens to be Ms. Chastain's co-star in "The Heiress" on Broadway.