Russell Simmons and Tina Brown having lunch yesterday at Da Silvano ... Cynthia Nixon walking downtown ... Daniel Craig carrying boxes into a building in Midtown, and then bumping into Diddy, who was was standing outside ... Ashlee Simpson arriving at JFK ... Blake Lively carrying an American Eagle shopping bag ... Jessica Lange and Sam Shepard walking in SoHo ... Al Pacino filming scenes for You Don't Know Jack in Brooklyn ... actor David Eigenberg standing with his son and wife on the Sex and the City set ... Hilary Duff talking on her cell phone ... and Shia LaBeouf and Carey Mulligan holding hands in SoHo.