
With production already beginning the new ensemble film
Parts Per Billion from director
Brian Horiuchi has added a few more notable names to its cast.
Penn Badgley (Greetings From Tim Buckley),
Teresa Palmer (I Am Number Four),
Alexis Bledel (Gilmore Girls) and
Hill Harper (CSI: New York) have joined the ensemble relationship drama along with
Frank Langella (Robot and Frank),
Gena Rowlands (Yellow),
Rosario Dawson (Sin City) and
Josh Hartnett (Black Hawk Down).

The film is currently scheduled to shoot through Christmas in Detroit and in the photo on the right, you can see Badgley and Palmer walk back to their trailers after filming a few scenes on Wednesday afternoon (December 5) in Detroit, Mich.
Parts Per Billion marks Horiuchi's directorial debut and is structured with interwoven stories like Magnolia and Crash, following three couples whose encounter with a ‘reality-shaking event' will rip their relationships apart.
The characters names will be Len, Mia, Andy, Esther, Anna and Erik, but the press release doesn't say which roles the new cast members will be playing.
Also check out the first photos below.

Source:
The Film Stage