The female portion of the cast of Aaron Sorkin’s HBO pilot is taking shape. Olivia Munn and Alison Pill are in negotiations for supporting roles in the project, while I hear Marisa Tomei is inching closer to committing to play the female lead.

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Tentatively titled More As This Story Develops, the project centers on cable news anchor Will McCallister (Jeff Daniels), who has his own show, as well as the show’s female executive producer and staff. Tomei repped by CAA and Untitled, the best of news production and how it all except the last…