Philip Seymour Hoffman back in NYC (but still wearing a hat), standing on the set of his latest movie, Jack Goes Boating ... Keri Russell walking with her son and husband in Brooklyn ... Kate Winslet arriving at JFK after her jaunt to LA for the Oscars ... Alexa Ray Joel shopping and juggling two cups of coffee simultaneously ... Will Ferrell watching the Knicks play at Madison Square Garden ... Taylor Momsen shopping with a friend in Soho ... Heather Mills standing on the sidewalk ... Katie Holmes leaving her apartment ... America Ferrera cuddling with a couple of dogs on the set of Ugly Betty ... and Robert De Niro walking through JFK after his trip to the Oscars.