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1) On Saturday night, Gwyneth Paltrow co-hosted "The Mane Event" to benefit Amaryllis Farm Equine Rescue with photographer Steven Klein at his West Kill Farm in Bridgehampton. Arden Wohl, Kiera Chaplin, Kelly Klein, Patrick McMullan, Sale Johnson, and Rory Tahari all made appearances, but hotly anticipated guest Madonna was a no show. [NYO/PMc]

2) In East Hampton on Saturday evening, Christy Turlington (left), Christie Brinkley, Abigail Breslin, Lizzie Grubman, Kelly Ripa, and Dina Lohan turned up at the Ross School for the school's annual summer benefit. Some 600 paid $1,500 a piece to hear the Jonas Brothers perform live. [Guest of a Guest, Newsday, NYO]

3) Bridgehampton saw no actual polo again this weekend thanks to a waterlogged field, but Katie Lee Joel hosted guests like Noah Tepperberg, Russell Simmons, Beth Ostrosky, and Robin Quivers at the Mercedes Benz Polo Challenge on Blue Jets field anyway. [PMc]

4) The new Woody Allen film, Vicky Christina Barcelona, was screened at UC Southampton last night. In the audience: Andy and Alison Brod, Joy Behar, Calvin Klein, Debbie Bancroft, Donna Karan, Ellen and Chuck Scarborough, Fern Mallis, Haley and Jason Binn, Jennifer Creel, James and Whitney Fairchild, Alina Cho, Sessa Von Richthofen and Richard Johnson, and Tory Burch. [The Daily/PMc]