Courteney Cox posed with David Arquette, Neve Campbell, and director Wes Craven on the set of Scream 4 in Detroit yesterday. Newcomers Adam Brody, Emma Roberts, and Hayden Panettiere have been spotted in costume around the fictional town, but this time it was just the original cast members on hand for a promotional photo shoot. Another fresh face, Alison Brie, missed the Mad Men season four premiere party last night to finish filming her part in the movie. Later in the day, Courteney changed into a bright purple dress and kept herself hydrated between scenes with Jennifer Aniston's signature beverage, smartwater. Meanwhile, Courteney's BFF was in the UK to launch her signature scent.