Brad Pitt [1] and Angelina Jolie [2] had a cute shopping trip with their twins, Knox and Vivienne, on Tuesday in NYC. The power couple smiled as they exited Barnes and Noble bookstore with a few shopping bags on the city's Upper West Side. Things are really amping up for the duo, whose newest film together, called By the Sea [3], hits theaters this month. They both appeared with all their kids in Vogue's November issue [4] and also in behind-the-scenes footage from the film [5]. More recently, Brad and Angelina showed unwavering support for each other [6] in a rare joint interview, and Brad opened up about having his wife in the director's chair [7]. Keep reading to see more pictures from their outing with Knox and Vivienne.